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Finding the Fourth Proportional to 81,375.71, 112,296.17 and 45,568.85

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Solution

The fourth proportional to 81,375.71, 112,296.17 and 45,568.85 is: 62,883.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,375.71 : 112,296.17 = 45,568.85 : x
  2. Step 2: Convert to fraction form
    81,375.71/112,296.17 = 45,568.85/x
  3. Step 3: Cross multiply
    81,375.71x = 112,296.17 × 45,568.85
  4. Step 4: Simplify right side
    81,375.71x = 5,117,206,878.75
  5. Step 5: Solve for x
    x = 5,117,206,878.75/81,375.71
  6. Step 6: Final answer
    x = 62,883.72

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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.