Home / 80,911.48-121,279.56-41,414.44

Finding the Fourth Proportional to 80,911.48, 121,279.56 and 41,414.44

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Solution

The fourth proportional to 80,911.48, 121,279.56 and 41,414.44 is: 62,076.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,911.48 : 121,279.56 = 41,414.44 : x
  2. Step 2: Convert to fraction form
    80,911.48/121,279.56 = 41,414.44/x
  3. Step 3: Cross multiply
    80,911.48x = 121,279.56 × 41,414.44
  4. Step 4: Simplify right side
    80,911.48x = 5,022,725,060.85
  5. Step 5: Solve for x
    x = 5,022,725,060.85/80,911.48
  6. Step 6: Final answer
    x = 62,076.79

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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.