Home / 87,963.90-131,944.71-21,404.07

Finding the Fourth Proportional to 87,963.90, 131,944.71 and 21,404.07

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Solution

The fourth proportional to 87,963.90, 131,944.71 and 21,404.07 is: 32,105.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,963.90 : 131,944.71 = 21,404.07 : x
  2. Step 2: Convert to fraction form
    87,963.90/131,944.71 = 21,404.07/x
  3. Step 3: Cross multiply
    87,963.90x = 131,944.71 × 21,404.07
  4. Step 4: Simplify right side
    87,963.90x = 2,824,153,808.97
  5. Step 5: Solve for x
    x = 2,824,153,808.97/87,963.90
  6. Step 6: Final answer
    x = 32,105.83

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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.