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Finding the Fourth Proportional to 85,449.59, 117,912.48 and 49,639.10

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Solution

The fourth proportional to 85,449.59, 117,912.48 and 49,639.10 is: 68,497.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,449.59 : 117,912.48 = 49,639.10 : x
  2. Step 2: Convert to fraction form
    85,449.59/117,912.48 = 49,639.10/x
  3. Step 3: Cross multiply
    85,449.59x = 117,912.48 × 49,639.10
  4. Step 4: Simplify right side
    85,449.59x = 5,853,069,385.97
  5. Step 5: Solve for x
    x = 5,853,069,385.97/85,449.59
  6. Step 6: Final answer
    x = 68,497.34

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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.