Home / 87,493.20-120,739.25-49,252.68

Finding the Fourth Proportional to 87,493.20, 120,739.25 and 49,252.68

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Solution

The fourth proportional to 87,493.20, 120,739.25 and 49,252.68 is: 67,967.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,493.20 : 120,739.25 = 49,252.68 : x
  2. Step 2: Convert to fraction form
    87,493.20/120,739.25 = 49,252.68/x
  3. Step 3: Cross multiply
    87,493.20x = 120,739.25 × 49,252.68
  4. Step 4: Simplify right side
    87,493.20x = 5,946,731,397.43
  5. Step 5: Solve for x
    x = 5,946,731,397.43/87,493.20
  6. Step 6: Final answer
    x = 67,967.93

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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.