Home / 87,824.72-131,737.43-21,264.75

Finding the Fourth Proportional to 87,824.72, 131,737.43 and 21,264.75

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Solution

The fourth proportional to 87,824.72, 131,737.43 and 21,264.75 is: 31,897.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,824.72 : 131,737.43 = 21,264.75 : x
  2. Step 2: Convert to fraction form
    87,824.72/131,737.43 = 21,264.75/x
  3. Step 3: Cross multiply
    87,824.72x = 131,737.43 × 21,264.75
  4. Step 4: Simplify right side
    87,824.72x = 2,801,363,567.75
  5. Step 5: Solve for x
    x = 2,801,363,567.75/87,824.72
  6. Step 6: Final answer
    x = 31,897.21

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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.