Home / 87,355.61-120,550.11-49,629.86

Finding the Fourth Proportional to 87,355.61, 120,550.11 and 49,629.86

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Solution

The fourth proportional to 87,355.61, 120,550.11 and 49,629.86 is: 68,488.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,355.61 : 120,550.11 = 49,629.86 : x
  2. Step 2: Convert to fraction form
    87,355.61/120,550.11 = 49,629.86/x
  3. Step 3: Cross multiply
    87,355.61x = 120,550.11 × 49,629.86
  4. Step 4: Simplify right side
    87,355.61x = 5,982,884,479.53
  5. Step 5: Solve for x
    x = 5,982,884,479.53/87,355.61
  6. Step 6: Final answer
    x = 68,488.84

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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.