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Finding the Fourth Proportional to 68,878.08, 95,052.88 and 38,250.40

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Solution

The fourth proportional to 68,878.08, 95,052.88 and 38,250.40 is: 52,786.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,878.08 : 95,052.88 = 38,250.40 : x
  2. Step 2: Convert to fraction form
    68,878.08/95,052.88 = 38,250.40/x
  3. Step 3: Cross multiply
    68,878.08x = 95,052.88 × 38,250.40
  4. Step 4: Simplify right side
    68,878.08x = 3,635,810,681.15
  5. Step 5: Solve for x
    x = 3,635,810,681.15/68,878.08
  6. Step 6: Final answer
    x = 52,786.18

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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.