Home / 80,760.96-121,156.56-25,344

Finding the Fourth Proportional to 80,760.96, 121,156.56 and 25,344

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Solution

The fourth proportional to 80,760.96, 121,156.56 and 25,344 is: 38,020.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,760.96 : 121,156.56 = 25,344 : x
  2. Step 2: Convert to fraction form
    80,760.96/121,156.56 = 25,344/x
  3. Step 3: Cross multiply
    80,760.96x = 121,156.56 × 25,344
  4. Step 4: Simplify right side
    80,760.96x = 3,070,591,856.64
  5. Step 5: Solve for x
    x = 3,070,591,856.64/80,760.96
  6. Step 6: Final answer
    x = 38,020.74

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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.