Home / 87,127.74-130,691.61-21,463.74

Finding the Fourth Proportional to 87,127.74, 130,691.61 and 21,463.74

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Solution

The fourth proportional to 87,127.74, 130,691.61 and 21,463.74 is: 32,195.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,127.74 : 130,691.61 = 21,463.74 : x
  2. Step 2: Convert to fraction form
    87,127.74/130,691.61 = 21,463.74/x
  3. Step 3: Cross multiply
    87,127.74x = 130,691.61 × 21,463.74
  4. Step 4: Simplify right side
    87,127.74x = 2,805,130,737.22
  5. Step 5: Solve for x
    x = 2,805,130,737.22/87,127.74
  6. Step 6: Final answer
    x = 32,195.61

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Similar ratio
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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.