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Finding the Fourth Proportional to 85,761.28, 118,350.57 and 52,227.28

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Solution

The fourth proportional to 85,761.28, 118,350.57 and 52,227.28 is: 72,073.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,761.28 : 118,350.57 = 52,227.28 : x
  2. Step 2: Convert to fraction form
    85,761.28/118,350.57 = 52,227.28/x
  3. Step 3: Cross multiply
    85,761.28x = 118,350.57 × 52,227.28
  4. Step 4: Simplify right side
    85,761.28x = 6,181,128,407.56
  5. Step 5: Solve for x
    x = 6,181,128,407.56/85,761.28
  6. Step 6: Final answer
    x = 72,073.65

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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.