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Finding the Fourth Proportional to 68,867.92, 95,040.84 and 53,938

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Solution

The fourth proportional to 68,867.92, 95,040.84 and 53,938 is: 74,436.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,867.92 : 95,040.84 = 53,938 : x
  2. Step 2: Convert to fraction form
    68,867.92/95,040.84 = 53,938/x
  3. Step 3: Cross multiply
    68,867.92x = 95,040.84 × 53,938
  4. Step 4: Simplify right side
    68,867.92x = 5,126,312,827.92
  5. Step 5: Solve for x
    x = 5,126,312,827.92/68,867.92
  6. Step 6: Final answer
    x = 74,436.88

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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.