Home / 87,974.43-131,961.24-21,414.30

Finding the Fourth Proportional to 87,974.43, 131,961.24 and 21,414.30

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Solution

The fourth proportional to 87,974.43, 131,961.24 and 21,414.30 is: 32,121.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,974.43 : 131,961.24 = 21,414.30 : x
  2. Step 2: Convert to fraction form
    87,974.43/131,961.24 = 21,414.30/x
  3. Step 3: Cross multiply
    87,974.43x = 131,961.24 × 21,414.30
  4. Step 4: Simplify right side
    87,974.43x = 2,825,857,581.73
  5. Step 5: Solve for x
    x = 2,825,857,581.73/87,974.43
  6. Step 6: Final answer
    x = 32,121.35

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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.