Home / 87,801.20-131,701.80-43,459.10

Finding the Fourth Proportional to 87,801.20, 131,701.80 and 43,459.10

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Solution

The fourth proportional to 87,801.20, 131,701.80 and 43,459.10 is: 65,188.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,801.20 : 131,701.80 = 43,459.10 : x
  2. Step 2: Convert to fraction form
    87,801.20/131,701.80 = 43,459.10/x
  3. Step 3: Cross multiply
    87,801.20x = 131,701.80 × 43,459.10
  4. Step 4: Simplify right side
    87,801.20x = 5,723,641,696.38
  5. Step 5: Solve for x
    x = 5,723,641,696.38/87,801.20
  6. Step 6: Final answer
    x = 65,188.65

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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.