Home / 80,757.44-121,333.26-76,281.38

Finding the Fourth Proportional to 80,757.44, 121,333.26 and 76,281.38

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Solution

The fourth proportional to 80,757.44, 121,333.26 and 76,281.38 is: 114,608.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,757.44 : 121,333.26 = 76,281.38 : x
  2. Step 2: Convert to fraction form
    80,757.44/121,333.26 = 76,281.38/x
  3. Step 3: Cross multiply
    80,757.44x = 121,333.26 × 76,281.38
  4. Step 4: Simplify right side
    80,757.44x = 9,255,468,512.70
  5. Step 5: Solve for x
    x = 9,255,468,512.70/80,757.44
  6. Step 6: Final answer
    x = 114,608.25

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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.