Home / 87,712.90-131,569.35-52,231.30

Finding the Fourth Proportional to 87,712.90, 131,569.35 and 52,231.30

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Solution

The fourth proportional to 87,712.90, 131,569.35 and 52,231.30 is: 78,346.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,712.90 : 131,569.35 = 52,231.30 : x
  2. Step 2: Convert to fraction form
    87,712.90/131,569.35 = 52,231.30/x
  3. Step 3: Cross multiply
    87,712.90x = 131,569.35 × 52,231.30
  4. Step 4: Simplify right side
    87,712.90x = 6,872,038,190.66
  5. Step 5: Solve for x
    x = 6,872,038,190.66/87,712.90
  6. Step 6: Final answer
    x = 78,346.95

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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.