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Finding the Fourth Proportional to 68,893.23, 95,071.78 and 38,677.78

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Solution

The fourth proportional to 68,893.23, 95,071.78 and 38,677.78 is: 53,374.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,893.23 : 95,071.78 = 38,677.78 : x
  2. Step 2: Convert to fraction form
    68,893.23/95,071.78 = 38,677.78/x
  3. Step 3: Cross multiply
    68,893.23x = 95,071.78 × 38,677.78
  4. Step 4: Simplify right side
    68,893.23x = 3,677,165,073.28
  5. Step 5: Solve for x
    x = 3,677,165,073.28/68,893.23
  6. Step 6: Final answer
    x = 53,374.84

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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.