Home / 87,447.20-120,695.06-55,609.94

Finding the Fourth Proportional to 87,447.20, 120,695.06 and 55,609.94

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Solution

The fourth proportional to 87,447.20, 120,695.06 and 55,609.94 is: 76,753.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,447.20 : 120,695.06 = 55,609.94 : x
  2. Step 2: Convert to fraction form
    87,447.20/120,695.06 = 55,609.94/x
  3. Step 3: Cross multiply
    87,447.20x = 120,695.06 × 55,609.94
  4. Step 4: Simplify right side
    87,447.20x = 6,711,845,485.66
  5. Step 5: Solve for x
    x = 6,711,845,485.66/87,447.20
  6. Step 6: Final answer
    x = 76,753.12

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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.