Home / 87,399,078.10-131,098,617.15-55,087,465.30

Finding the Fourth Proportional to 87,399,078.10, 131,098,617.15 and 55,087,465.30

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Solution

The fourth proportional to 87,399,078.10, 131,098,617.15 and 55,087,465.30 is: 82,631,197.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,399,078.10 : 131,098,617.15 = 55,087,465.30 : x
  2. Step 2: Convert to fraction form
    87,399,078.10/131,098,617.15 = 55,087,465.30/x
  3. Step 3: Cross multiply
    87,399,078.10x = 131,098,617.15 × 55,087,465.30
  4. Step 4: Simplify right side
    87,399,078.10x = 7,221,890,523,128,610
  5. Step 5: Solve for x
    x = 7,221,890,523,128,610/87,399,078.10
  6. Step 6: Final answer
    x = 82,631,197.95

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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.