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Finding the Fourth Proportional to 85,249.17, 127,910.61 and 45,760.17

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Solution

The fourth proportional to 85,249.17, 127,910.61 and 45,760.17 is: 68,660.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,249.17 : 127,910.61 = 45,760.17 : x
  2. Step 2: Convert to fraction form
    85,249.17/127,910.61 = 45,760.17/x
  3. Step 3: Cross multiply
    85,249.17x = 127,910.61 × 45,760.17
  4. Step 4: Simplify right side
    85,249.17x = 5,853,211,258.40
  5. Step 5: Solve for x
    x = 5,853,211,258.40/85,249.17
  6. Step 6: Final answer
    x = 68,660.04

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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.