Home / 87,727.40-131,439.90-40,884.20

Finding the Fourth Proportional to 87,727.40, 131,439.90 and 40,884.20

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Solution

The fourth proportional to 87,727.40, 131,439.90 and 40,884.20 is: 61,255.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,727.40 : 131,439.90 = 40,884.20 : x
  2. Step 2: Convert to fraction form
    87,727.40/131,439.90 = 40,884.20/x
  3. Step 3: Cross multiply
    87,727.40x = 131,439.90 × 40,884.20
  4. Step 4: Simplify right side
    87,727.40x = 5,373,815,159.58
  5. Step 5: Solve for x
    x = 5,373,815,159.58/87,727.40
  6. Step 6: Final answer
    x = 61,255.84

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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.