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Finding the Fourth Proportional to 68,894.43, 95,073.48 and 38,679

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Solution

The fourth proportional to 68,894.43, 95,073.48 and 38,679 is: 53,376.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,894.43 : 95,073.48 = 38,679 : x
  2. Step 2: Convert to fraction form
    68,894.43/95,073.48 = 38,679/x
  3. Step 3: Cross multiply
    68,894.43x = 95,073.48 × 38,679
  4. Step 4: Simplify right side
    68,894.43x = 3,677,347,132.92
  5. Step 5: Solve for x
    x = 3,677,347,132.92/68,894.43
  6. Step 6: Final answer
    x = 53,376.55

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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.