Home / 80,929.92-121,470.72-49,825.92

Finding the Fourth Proportional to 80,929.92, 121,470.72 and 49,825.92

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Solution

The fourth proportional to 80,929.92, 121,470.72 and 49,825.92 is: 74,785.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,929.92 : 121,470.72 = 49,825.92 : x
  2. Step 2: Convert to fraction form
    80,929.92/121,470.72 = 49,825.92/x
  3. Step 3: Cross multiply
    80,929.92x = 121,470.72 × 49,825.92
  4. Step 4: Simplify right side
    80,929.92x = 6,052,390,377.06
  5. Step 5: Solve for x
    x = 6,052,390,377.06/80,929.92
  6. Step 6: Final answer
    x = 74,785.57

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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.