Finding the Fourth Proportional to 100,039.74, 138,097.35 and 62,332.62
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Solution
The fourth proportional to 100,039.74, 138,097.35 and 62,332.62 is: 86,045.50
Step by Step Solution
- Step 1: Write the proportion equation
100,039.74 : 138,097.35 = 62,332.62 : x - Step 2: Convert to fraction form
100,039.74/138,097.35 = 62,332.62/x - Step 3: Cross multiply
100,039.74x = 138,097.35 × 62,332.62 - Step 4: Simplify right side
100,039.74x = 8,607,969,640.56 - Step 5: Solve for x
x = 8,607,969,640.56/100,039.74 - Step 6: Final answer
x = 86,045.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.