Finding the Fourth Proportional to 71,691.86, 107,535.36 and 27,317.02
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Solution
The fourth proportional to 71,691.86, 107,535.36 and 27,317.02 is: 40,974.60
Step by Step Solution
- Step 1: Write the proportion equation
71,691.86 : 107,535.36 = 27,317.02 : x - Step 2: Convert to fraction form
71,691.86/107,535.36 = 27,317.02/x - Step 3: Cross multiply
71,691.86x = 107,535.36 × 27,317.02 - Step 4: Simplify right side
71,691.86x = 2,937,545,579.83 - Step 5: Solve for x
x = 2,937,545,579.83/71,691.86 - Step 6: Final answer
x = 40,974.60
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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.