Home / 87,346.22-120,542.05-49,117.80

Finding the Fourth Proportional to 87,346.22, 120,542.05 and 49,117.80

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Solution

The fourth proportional to 87,346.22, 120,542.05 and 49,117.80 is: 67,784.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,346.22 : 120,542.05 = 49,117.80 : x
  2. Step 2: Convert to fraction form
    87,346.22/120,542.05 = 49,117.80/x
  3. Step 3: Cross multiply
    87,346.22x = 120,542.05 × 49,117.80
  4. Step 4: Simplify right side
    87,346.22x = 5,920,759,700.78
  5. Step 5: Solve for x
    x = 5,920,759,700.78/87,346.22
  6. Step 6: Final answer
    x = 67,784.96

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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.