Home / 91,138.19-125,755.61-60,874.97

Finding the Fourth Proportional to 91,138.19, 125,755.61 and 60,874.97

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Solution

The fourth proportional to 91,138.19, 125,755.61 and 60,874.97 is: 83,997.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,138.19 : 125,755.61 = 60,874.97 : x
  2. Step 2: Convert to fraction form
    91,138.19/125,755.61 = 60,874.97/x
  3. Step 3: Cross multiply
    91,138.19x = 125,755.61 × 60,874.97
  4. Step 4: Simplify right side
    91,138.19x = 7,655,368,052.93
  5. Step 5: Solve for x
    x = 7,655,368,052.93/91,138.19
  6. Step 6: Final answer
    x = 83,997.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.