Home / 87,517.68-120,777.18-49,794.36

Finding the Fourth Proportional to 87,517.68, 120,777.18 and 49,794.36

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Solution

The fourth proportional to 87,517.68, 120,777.18 and 49,794.36 is: 68,717.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,517.68 : 120,777.18 = 49,794.36 : x
  2. Step 2: Convert to fraction form
    87,517.68/120,777.18 = 49,794.36/x
  3. Step 3: Cross multiply
    87,517.68x = 120,777.18 × 49,794.36
  4. Step 4: Simplify right side
    87,517.68x = 6,014,022,380.70
  5. Step 5: Solve for x
    x = 6,014,022,380.70/87,517.68
  6. Step 6: Final answer
    x = 68,717.80

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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.