Finding the Fourth Proportional to 77,938.16, 116,918.56 and 24,612.08
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Solution
The fourth proportional to 77,938.16, 116,918.56 and 24,612.08 is: 36,921.69
Step by Step Solution
- Step 1: Write the proportion equation
77,938.16 : 116,918.56 = 24,612.08 : x - Step 2: Convert to fraction form
77,938.16/116,918.56 = 24,612.08/x - Step 3: Cross multiply
77,938.16x = 116,918.56 × 24,612.08 - Step 4: Simplify right side
77,938.16x = 2,877,608,952.20 - Step 5: Solve for x
x = 2,877,608,952.20/77,938.16 - Step 6: Final answer
x = 36,921.69
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1.5x scale
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.