Home / 87,385.28-120,595.92-49,145.60

Finding the Fourth Proportional to 87,385.28, 120,595.92 and 49,145.60

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Solution

The fourth proportional to 87,385.28, 120,595.92 and 49,145.60 is: 67,823.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,385.28 : 120,595.92 = 49,145.60 : x
  2. Step 2: Convert to fraction form
    87,385.28/120,595.92 = 49,145.60/x
  3. Step 3: Cross multiply
    87,385.28x = 120,595.92 × 49,145.60
  4. Step 4: Simplify right side
    87,385.28x = 5,926,758,845.95
  5. Step 5: Solve for x
    x = 5,926,758,845.95/87,385.28
  6. Step 6: Final answer
    x = 67,823.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.