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Finding the Fourth Proportional to 80,169.96, 120,220.20 and 38,062.20

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Solution

The fourth proportional to 80,169.96, 120,220.20 and 38,062.20 is: 57,076.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,169.96 : 120,220.20 = 38,062.20 : x
  2. Step 2: Convert to fraction form
    80,169.96/120,220.20 = 38,062.20/x
  3. Step 3: Cross multiply
    80,169.96x = 120,220.20 × 38,062.20
  4. Step 4: Simplify right side
    80,169.96x = 4,575,845,296.44
  5. Step 5: Solve for x
    x = 4,575,845,296.44/80,169.96
  6. Step 6: Final answer
    x = 57,076.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.