Home / 80,879.16-121,318.86-41,414.76

Finding the Fourth Proportional to 80,879.16, 121,318.86 and 41,414.76

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Solution

The fourth proportional to 80,879.16, 121,318.86 and 41,414.76 is: 62,122.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,879.16 : 121,318.86 = 41,414.76 : x
  2. Step 2: Convert to fraction form
    80,879.16/121,318.86 = 41,414.76/x
  3. Step 3: Cross multiply
    80,879.16x = 121,318.86 × 41,414.76
  4. Step 4: Simplify right side
    80,879.16x = 5,024,391,470.37
  5. Step 5: Solve for x
    x = 5,024,391,470.37/80,879.16
  6. Step 6: Final answer
    x = 62,122.20

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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.