Home / 80,577.28-120,865.92-25,173.28

Finding the Fourth Proportional to 80,577.28, 120,865.92 and 25,173.28

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Solution

The fourth proportional to 80,577.28, 120,865.92 and 25,173.28 is: 37,759.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,577.28 : 120,865.92 = 25,173.28 : x
  2. Step 2: Convert to fraction form
    80,577.28/120,865.92 = 25,173.28/x
  3. Step 3: Cross multiply
    80,577.28x = 120,865.92 × 25,173.28
  4. Step 4: Simplify right side
    80,577.28x = 3,042,591,844.90
  5. Step 5: Solve for x
    x = 3,042,591,844.90/80,577.28
  6. Step 6: Final answer
    x = 37,759.92

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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.