Home / 81,177.80-121,766.92-25,016.09

Finding the Fourth Proportional to 81,177.80, 121,766.92 and 25,016.09

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Solution

The fourth proportional to 81,177.80, 121,766.92 and 25,016.09 is: 37,524.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,177.80 : 121,766.92 = 25,016.09 : x
  2. Step 2: Convert to fraction form
    81,177.80/121,766.92 = 25,016.09/x
  3. Step 3: Cross multiply
    81,177.80x = 121,766.92 × 25,016.09
  4. Step 4: Simplify right side
    81,177.80x = 3,046,132,313.66
  5. Step 5: Solve for x
    x = 3,046,132,313.66/81,177.80
  6. Step 6: Final answer
    x = 37,524.21

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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.