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Finding the Fourth Proportional to 68,734.56, 103,183.92 and 54,865.92

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Solution

The fourth proportional to 68,734.56, 103,183.92 and 54,865.92 is: 82,364.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,734.56 : 103,183.92 = 54,865.92 : x
  2. Step 2: Convert to fraction form
    68,734.56/103,183.92 = 54,865.92/x
  3. Step 3: Cross multiply
    68,734.56x = 103,183.92 × 54,865.92
  4. Step 4: Simplify right side
    68,734.56x = 5,661,280,700.01
  5. Step 5: Solve for x
    x = 5,661,280,700.01/68,734.56
  6. Step 6: Final answer
    x = 82,364.40

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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.