Finding the Fourth Proportional to 100,034.29, 138,031.99 and 57,584.62
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Solution
The fourth proportional to 100,034.29, 138,031.99 and 57,584.62 is: 79,457.95
Step by Step Solution
- Step 1: Write the proportion equation
100,034.29 : 138,031.99 = 57,584.62 : x - Step 2: Convert to fraction form
100,034.29/138,031.99 = 57,584.62/x - Step 3: Cross multiply
100,034.29x = 138,031.99 × 57,584.62 - Step 4: Simplify right side
100,034.29x = 7,948,519,691.99 - Step 5: Solve for x
x = 7,948,519,691.99/100,034.29 - Step 6: Final answer
x = 79,457.95
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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.