Home / 87,410.60-131,039.10-52,364.20

Finding the Fourth Proportional to 87,410.60, 131,039.10 and 52,364.20

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Solution

The fourth proportional to 87,410.60, 131,039.10 and 52,364.20 is: 78,500.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,410.60 : 131,039.10 = 52,364.20 : x
  2. Step 2: Convert to fraction form
    87,410.60/131,039.10 = 52,364.20/x
  3. Step 3: Cross multiply
    87,410.60x = 131,039.10 × 52,364.20
  4. Step 4: Simplify right side
    87,410.60x = 6,861,757,640.22
  5. Step 5: Solve for x
    x = 6,861,757,640.22/87,410.60
  6. Step 6: Final answer
    x = 78,500.29

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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.