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Finding the Fourth Proportional to 68,729.08, 94,854 and 38,522.56

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Solution

The fourth proportional to 68,729.08, 94,854 and 38,522.56 is: 53,165.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,729.08 : 94,854 = 38,522.56 : x
  2. Step 2: Convert to fraction form
    68,729.08/94,854 = 38,522.56/x
  3. Step 3: Cross multiply
    68,729.08x = 94,854 × 38,522.56
  4. Step 4: Simplify right side
    68,729.08x = 3,654,018,906.24
  5. Step 5: Solve for x
    x = 3,654,018,906.24/68,729.08
  6. Step 6: Final answer
    x = 53,165.54

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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.