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Finding the Fourth Proportional to 85,375.44, 117,819.72 and 49,568.40

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Solution

The fourth proportional to 85,375.44, 117,819.72 and 49,568.40 is: 68,405.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,375.44 : 117,819.72 = 49,568.40 : x
  2. Step 2: Convert to fraction form
    85,375.44/117,819.72 = 49,568.40/x
  3. Step 3: Cross multiply
    85,375.44x = 117,819.72 × 49,568.40
  4. Step 4: Simplify right side
    85,375.44x = 5,840,135,008.85
  5. Step 5: Solve for x
    x = 5,840,135,008.85/85,375.44
  6. Step 6: Final answer
    x = 68,405.33

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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.