Home / 81,862.42-122,793.66-36,831.18

Finding the Fourth Proportional to 81,862.42, 122,793.66 and 36,831.18

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Solution

The fourth proportional to 81,862.42, 122,793.66 and 36,831.18 is: 55,246.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,862.42 : 122,793.66 = 36,831.18 : x
  2. Step 2: Convert to fraction form
    81,862.42/122,793.66 = 36,831.18/x
  3. Step 3: Cross multiply
    81,862.42x = 122,793.66 × 36,831.18
  4. Step 4: Simplify right side
    81,862.42x = 4,522,635,394.32
  5. Step 5: Solve for x
    x = 4,522,635,394.32/81,862.42
  6. Step 6: Final answer
    x = 55,246.78

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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.