Home / 89,652.42-123,725.46-49,374.78

Finding the Fourth Proportional to 89,652.42, 123,725.46 and 49,374.78

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Solution

The fourth proportional to 89,652.42, 123,725.46 and 49,374.78 is: 68,140.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,652.42 : 123,725.46 = 49,374.78 : x
  2. Step 2: Convert to fraction form
    89,652.42/123,725.46 = 49,374.78/x
  3. Step 3: Cross multiply
    89,652.42x = 123,725.46 × 49,374.78
  4. Step 4: Simplify right side
    89,652.42x = 6,108,917,367.90
  5. Step 5: Solve for x
    x = 6,108,917,367.90/89,652.42
  6. Step 6: Final answer
    x = 68,140.02

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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.