Home / 87,654.76-120,934.02-49,902.28

Finding the Fourth Proportional to 87,654.76, 120,934.02 and 49,902.28

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Solution

The fourth proportional to 87,654.76, 120,934.02 and 49,902.28 is: 68,848.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,654.76 : 120,934.02 = 49,902.28 : x
  2. Step 2: Convert to fraction form
    87,654.76/120,934.02 = 49,902.28/x
  3. Step 3: Cross multiply
    87,654.76x = 120,934.02 × 49,902.28
  4. Step 4: Simplify right side
    87,654.76x = 6,034,883,327.57
  5. Step 5: Solve for x
    x = 6,034,883,327.57/87,654.76
  6. Step 6: Final answer
    x = 68,848.32

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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.