Home / 87,974.69-131,962.26-21,414.71

Finding the Fourth Proportional to 87,974.69, 131,962.26 and 21,414.71

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Solution

The fourth proportional to 87,974.69, 131,962.26 and 21,414.71 is: 32,122.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,974.69 : 131,962.26 = 21,414.71 : x
  2. Step 2: Convert to fraction form
    87,974.69/131,962.26 = 21,414.71/x
  3. Step 3: Cross multiply
    87,974.69x = 131,962.26 × 21,414.71
  4. Step 4: Simplify right side
    87,974.69x = 2,825,932,869.03
  5. Step 5: Solve for x
    x = 2,825,932,869.03/87,974.69
  6. Step 6: Final answer
    x = 32,122.11

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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.