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Finding the Fourth Proportional to 68,568.45, 102,893.55 and 30,614.77

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Solution

The fourth proportional to 68,568.45, 102,893.55 and 30,614.77 is: 45,940.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,568.45 : 102,893.55 = 30,614.77 : x
  2. Step 2: Convert to fraction form
    68,568.45/102,893.55 = 30,614.77/x
  3. Step 3: Cross multiply
    68,568.45x = 102,893.55 × 30,614.77
  4. Step 4: Simplify right side
    68,568.45x = 3,150,062,367.73
  5. Step 5: Solve for x
    x = 3,150,062,367.73/68,568.45
  6. Step 6: Final answer
    x = 45,940.41

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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.