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Finding the Fourth Proportional to 68,383.56, 102,571.62 and 18,462.96

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Solution

The fourth proportional to 68,383.56, 102,571.62 and 18,462.96 is: 27,693.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,383.56 : 102,571.62 = 18,462.96 : x
  2. Step 2: Convert to fraction form
    68,383.56/102,571.62 = 18,462.96/x
  3. Step 3: Cross multiply
    68,383.56x = 102,571.62 × 18,462.96
  4. Step 4: Simplify right side
    68,383.56x = 1,893,775,717.20
  5. Step 5: Solve for x
    x = 1,893,775,717.20/68,383.56
  6. Step 6: Final answer
    x = 27,693.44

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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.