Finding the Fourth Proportional to 77,280.66, 115,938.99 and 24,686.10
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Solution
The fourth proportional to 77,280.66, 115,938.99 and 24,686.10 is: 37,034.90
Step by Step Solution
- Step 1: Write the proportion equation
77,280.66 : 115,938.99 = 24,686.10 : x - Step 2: Convert to fraction form
77,280.66/115,938.99 = 24,686.10/x - Step 3: Cross multiply
77,280.66x = 115,938.99 × 24,686.10 - Step 4: Simplify right side
77,280.66x = 2,862,081,501.04 - Step 5: Solve for x
x = 2,862,081,501.04/77,280.66 - Step 6: Final answer
x = 37,034.90
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.