A company suffers a $100,000 property loss at its commercial location.

When more than one insurer covers the same property under policies with identical terms, the loss is often shared according to the proportion of insurance each company provides. This is commonly referred to as contribution “pro rata by limits.”

First, determine the total amount of insurance:

Insurer X: $400,000

Insurer Y: $100,000

Total insurance: $500,000

Next, determine each insurer’s percentage of the total:

Insurer X: 400,000 ÷ 500,000 = 80%

Insurer Y: 100,000 ÷ 500,000 = 20%

The total loss is $100,000, so each insurer pays its proportion of the loss:

Insurer X: 80% × $100,000 = $80,000

Insurer Y: 20% × $100,000 = $20,000

There is no deductible to adjust these amounts. Thus, Insurer X pays $80,000 and Insurer Y pays $20,000, making Option C correct.