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Finding the Fourth Proportional to 68,456.88, 102,659.40 and 29,032.56

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Solution

The fourth proportional to 68,456.88, 102,659.40 and 29,032.56 is: 43,537.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,456.88 : 102,659.40 = 29,032.56 : x
  2. Step 2: Convert to fraction form
    68,456.88/102,659.40 = 29,032.56/x
  3. Step 3: Cross multiply
    68,456.88x = 102,659.40 × 29,032.56
  4. Step 4: Simplify right side
    68,456.88x = 2,980,465,190.06
  5. Step 5: Solve for x
    x = 2,980,465,190.06/68,456.88
  6. Step 6: Final answer
    x = 43,537.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.