Home / 84,287.76-126,431.58-25,121.91

Finding the Fourth Proportional to 84,287.76, 126,431.58 and 25,121.91

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Solution

The fourth proportional to 84,287.76, 126,431.58 and 25,121.91 is: 37,682.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,287.76 : 126,431.58 = 25,121.91 : x
  2. Step 2: Convert to fraction form
    84,287.76/126,431.58 = 25,121.91/x
  3. Step 3: Cross multiply
    84,287.76x = 126,431.58 × 25,121.91
  4. Step 4: Simplify right side
    84,287.76x = 3,176,202,773.92
  5. Step 5: Solve for x
    x = 3,176,202,773.92/84,287.76
  6. Step 6: Final answer
    x = 37,682.85

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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.