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Finding the Fourth Proportional to 68,112.54, 102,215.79 and 23,739.66

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Solution

The fourth proportional to 68,112.54, 102,215.79 and 23,739.66 is: 35,625.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,112.54 : 102,215.79 = 23,739.66 : x
  2. Step 2: Convert to fraction form
    68,112.54/102,215.79 = 23,739.66/x
  3. Step 3: Cross multiply
    68,112.54x = 102,215.79 × 23,739.66
  4. Step 4: Simplify right side
    68,112.54x = 2,426,568,101.23
  5. Step 5: Solve for x
    x = 2,426,568,101.23/68,112.54
  6. Step 6: Final answer
    x = 35,625.86

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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.