Home / 81,910.06-122,851.42-22,751.71

Finding the Fourth Proportional to 81,910.06, 122,851.42 and 22,751.71

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Solution

The fourth proportional to 81,910.06, 122,851.42 and 22,751.71 is: 34,123.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,910.06 : 122,851.42 = 22,751.71 : x
  2. Step 2: Convert to fraction form
    81,910.06/122,851.42 = 22,751.71/x
  3. Step 3: Cross multiply
    81,910.06x = 122,851.42 × 22,751.71
  4. Step 4: Simplify right side
    81,910.06x = 2,795,079,516.92
  5. Step 5: Solve for x
    x = 2,795,079,516.92/81,910.06
  6. Step 6: Final answer
    x = 34,123.76

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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.