Home / 87,512.70-131,301.45-28,350.30

Finding the Fourth Proportional to 87,512.70, 131,301.45 and 28,350.30

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Solution

The fourth proportional to 87,512.70, 131,301.45 and 28,350.30 is: 42,535.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,512.70 : 131,301.45 = 28,350.30 : x
  2. Step 2: Convert to fraction form
    87,512.70/131,301.45 = 28,350.30/x
  3. Step 3: Cross multiply
    87,512.70x = 131,301.45 × 28,350.30
  4. Step 4: Simplify right side
    87,512.70x = 3,722,435,497.94
  5. Step 5: Solve for x
    x = 3,722,435,497.94/87,512.70
  6. Step 6: Final answer
    x = 42,535.95

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1.5x scale

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.