Home / 87,691.44-120,985.14-49,446.18

Finding the Fourth Proportional to 87,691.44, 120,985.14 and 49,446.18

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Solution

The fourth proportional to 87,691.44, 120,985.14 and 49,446.18 is: 68,219.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,691.44 : 120,985.14 = 49,446.18 : x
  2. Step 2: Convert to fraction form
    87,691.44/120,985.14 = 49,446.18/x
  3. Step 3: Cross multiply
    87,691.44x = 120,985.14 × 49,446.18
  4. Step 4: Simplify right side
    87,691.44x = 5,982,253,009.77
  5. Step 5: Solve for x
    x = 5,982,253,009.77/87,691.44
  6. Step 6: Final answer
    x = 68,219.35

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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.