Home / 81,246.13-121,872.45-25,081.27

Finding the Fourth Proportional to 81,246.13, 121,872.45 and 25,081.27

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Solution

The fourth proportional to 81,246.13, 121,872.45 and 25,081.27 is: 37,622.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,246.13 : 121,872.45 = 25,081.27 : x
  2. Step 2: Convert to fraction form
    81,246.13/121,872.45 = 25,081.27/x
  3. Step 3: Cross multiply
    81,246.13x = 121,872.45 × 25,081.27
  4. Step 4: Simplify right side
    81,246.13x = 3,056,715,824.01
  5. Step 5: Solve for x
    x = 3,056,715,824.01/81,246.13
  6. Step 6: Final answer
    x = 37,622.91

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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.