Home / 76,891.68-115,374.38-41,831.28

Finding the Fourth Proportional to 76,891.68, 115,374.38 and 41,831.28

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Solution

The fourth proportional to 76,891.68, 115,374.38 and 41,831.28 is: 62,766.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,891.68 : 115,374.38 = 41,831.28 : x
  2. Step 2: Convert to fraction form
    76,891.68/115,374.38 = 41,831.28/x
  3. Step 3: Cross multiply
    76,891.68x = 115,374.38 × 41,831.28
  4. Step 4: Simplify right side
    76,891.68x = 4,826,257,785.45
  5. Step 5: Solve for x
    x = 4,826,257,785.45/76,891.68
  6. Step 6: Final answer
    x = 62,766.97

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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.