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Finding the Fourth Proportional to 68,691.48, 94,795.80 and 38,479.02

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Solution

The fourth proportional to 68,691.48, 94,795.80 and 38,479.02 is: 53,101.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,691.48 : 94,795.80 = 38,479.02 : x
  2. Step 2: Convert to fraction form
    68,691.48/94,795.80 = 38,479.02/x
  3. Step 3: Cross multiply
    68,691.48x = 94,795.80 × 38,479.02
  4. Step 4: Simplify right side
    68,691.48x = 3,647,649,484.12
  5. Step 5: Solve for x
    x = 3,647,649,484.12/68,691.48
  6. Step 6: Final answer
    x = 53,101.92

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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.