Home / 87,500.80-131,251.20-54,112.60

Finding the Fourth Proportional to 87,500.80, 131,251.20 and 54,112.60

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Solution

The fourth proportional to 87,500.80, 131,251.20 and 54,112.60 is: 81,168.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,500.80 : 131,251.20 = 54,112.60 : x
  2. Step 2: Convert to fraction form
    87,500.80/131,251.20 = 54,112.60/x
  3. Step 3: Cross multiply
    87,500.80x = 131,251.20 × 54,112.60
  4. Step 4: Simplify right side
    87,500.80x = 7,102,343,685.12
  5. Step 5: Solve for x
    x = 7,102,343,685.12/87,500.80
  6. Step 6: Final answer
    x = 81,168.90

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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.