Home / 87,964.38-131,944.68-21,404.88

Finding the Fourth Proportional to 87,964.38, 131,944.68 and 21,404.88

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Solution

The fourth proportional to 87,964.38, 131,944.68 and 21,404.88 is: 32,106.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,964.38 : 131,944.68 = 21,404.88 : x
  2. Step 2: Convert to fraction form
    87,964.38/131,944.68 = 21,404.88/x
  3. Step 3: Cross multiply
    87,964.38x = 131,944.68 × 21,404.88
  4. Step 4: Simplify right side
    87,964.38x = 2,824,260,042.04
  5. Step 5: Solve for x
    x = 2,824,260,042.04/87,964.38
  6. Step 6: Final answer
    x = 32,106.86

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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.