Home / 87,610.40-131,425.20-84,845.60

Finding the Fourth Proportional to 87,610.40, 131,425.20 and 84,845.60

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Solution

The fourth proportional to 87,610.40, 131,425.20 and 84,845.60 is: 127,277.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,610.40 : 131,425.20 = 84,845.60 : x
  2. Step 2: Convert to fraction form
    87,610.40/131,425.20 = 84,845.60/x
  3. Step 3: Cross multiply
    87,610.40x = 131,425.20 × 84,845.60
  4. Step 4: Simplify right side
    87,610.40x = 11,150,849,949.12
  5. Step 5: Solve for x
    x = 11,150,849,949.12/87,610.40
  6. Step 6: Final answer
    x = 127,277.70

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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.