Home / 81,137.73-121,720.38-24,976.56

Finding the Fourth Proportional to 81,137.73, 121,720.38 and 24,976.56

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Solution

The fourth proportional to 81,137.73, 121,720.38 and 24,976.56 is: 37,469.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,137.73 : 121,720.38 = 24,976.56 : x
  2. Step 2: Convert to fraction form
    81,137.73/121,720.38 = 24,976.56/x
  3. Step 3: Cross multiply
    81,137.73x = 121,720.38 × 24,976.56
  4. Step 4: Simplify right side
    81,137.73x = 3,040,156,374.29
  5. Step 5: Solve for x
    x = 3,040,156,374.29/81,137.73
  6. Step 6: Final answer
    x = 37,469.08

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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.