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Finding the Fourth Proportional to 68,876.78, 95,051.36 and 38,664.29

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Solution

The fourth proportional to 68,876.78, 95,051.36 and 38,664.29 is: 53,357.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,876.78 : 95,051.36 = 38,664.29 : x
  2. Step 2: Convert to fraction form
    68,876.78/95,051.36 = 38,664.29/x
  3. Step 3: Cross multiply
    68,876.78x = 95,051.36 × 38,664.29
  4. Step 4: Simplify right side
    68,876.78x = 3,675,092,679.36
  5. Step 5: Solve for x
    x = 3,675,092,679.36/68,876.78
  6. Step 6: Final answer
    x = 53,357.50

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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.