Home / 87,729.42-131,593.46-21,169.29

Finding the Fourth Proportional to 87,729.42, 131,593.46 and 21,169.29

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Solution

The fourth proportional to 87,729.42, 131,593.46 and 21,169.29 is: 31,753.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,729.42 : 131,593.46 = 21,169.29 : x
  2. Step 2: Convert to fraction form
    87,729.42/131,593.46 = 21,169.29/x
  3. Step 3: Cross multiply
    87,729.42x = 131,593.46 × 21,169.29
  4. Step 4: Simplify right side
    87,729.42x = 2,785,740,011.00
  5. Step 5: Solve for x
    x = 2,785,740,011.00/87,729.42
  6. Step 6: Final answer
    x = 31,753.77

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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.