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Finding the Fourth Proportional to 68,033.92, 102,052.80 and 18,785.92

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Solution

The fourth proportional to 68,033.92, 102,052.80 and 18,785.92 is: 28,179.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,033.92 : 102,052.80 = 18,785.92 : x
  2. Step 2: Convert to fraction form
    68,033.92/102,052.80 = 18,785.92/x
  3. Step 3: Cross multiply
    68,033.92x = 102,052.80 × 18,785.92
  4. Step 4: Simplify right side
    68,033.92x = 1,917,155,736.58
  5. Step 5: Solve for x
    x = 1,917,155,736.58/68,033.92
  6. Step 6: Final answer
    x = 28,179.41

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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.