Home / 80,761.38-121,146.92-25,357.38

Finding the Fourth Proportional to 80,761.38, 121,146.92 and 25,357.38

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Solution

The fourth proportional to 80,761.38, 121,146.92 and 25,357.38 is: 38,037.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,761.38 : 121,146.92 = 25,357.38 : x
  2. Step 2: Convert to fraction form
    80,761.38/121,146.92 = 25,357.38/x
  3. Step 3: Cross multiply
    80,761.38x = 121,146.92 × 25,357.38
  4. Step 4: Simplify right side
    80,761.38x = 3,071,968,486.27
  5. Step 5: Solve for x
    x = 3,071,968,486.27/80,761.38
  6. Step 6: Final answer
    x = 38,037.59

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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.