Home / 87,620.60-131,517.30-43,297.40

Finding the Fourth Proportional to 87,620.60, 131,517.30 and 43,297.40

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Solution

The fourth proportional to 87,620.60, 131,517.30 and 43,297.40 is: 64,988.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,620.60 : 131,517.30 = 43,297.40 : x
  2. Step 2: Convert to fraction form
    87,620.60/131,517.30 = 43,297.40/x
  3. Step 3: Cross multiply
    87,620.60x = 131,517.30 × 43,297.40
  4. Step 4: Simplify right side
    87,620.60x = 5,694,357,145.02
  5. Step 5: Solve for x
    x = 5,694,357,145.02/87,620.60
  6. Step 6: Final answer
    x = 64,988.79

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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.