Home / 83,380.38-125,083.52-27,989.34

Finding the Fourth Proportional to 83,380.38, 125,083.52 and 27,989.34

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Solution

The fourth proportional to 83,380.38, 125,083.52 and 27,989.34 is: 41,988.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,380.38 : 125,083.52 = 27,989.34 : x
  2. Step 2: Convert to fraction form
    83,380.38/125,083.52 = 27,989.34/x
  3. Step 3: Cross multiply
    83,380.38x = 125,083.52 × 27,989.34
  4. Step 4: Simplify right side
    83,380.38x = 3,501,005,169.68
  5. Step 5: Solve for x
    x = 3,501,005,169.68/83,380.38
  6. Step 6: Final answer
    x = 41,988.36

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1.5x scale

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.