Home / 87,759.29-131,652.60-28,581.20

Finding the Fourth Proportional to 87,759.29, 131,652.60 and 28,581.20

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Solution

The fourth proportional to 87,759.29, 131,652.60 and 28,581.20 is: 42,876.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,759.29 : 131,652.60 = 28,581.20 : x
  2. Step 2: Convert to fraction form
    87,759.29/131,652.60 = 28,581.20/x
  3. Step 3: Cross multiply
    87,759.29x = 131,652.60 × 28,581.20
  4. Step 4: Simplify right side
    87,759.29x = 3,762,788,632.86
  5. Step 5: Solve for x
    x = 3,762,788,632.86/87,759.29
  6. Step 6: Final answer
    x = 42,876.24

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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.