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Finding the Fourth Proportional to 68,743.80, 103,101.30 and 33,708.60

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Solution

The fourth proportional to 68,743.80, 103,101.30 and 33,708.60 is: 50,555.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,743.80 : 103,101.30 = 33,708.60 : x
  2. Step 2: Convert to fraction form
    68,743.80/103,101.30 = 33,708.60/x
  3. Step 3: Cross multiply
    68,743.80x = 103,101.30 × 33,708.60
  4. Step 4: Simplify right side
    68,743.80x = 3,475,400,481.18
  5. Step 5: Solve for x
    x = 3,475,400,481.18/68,743.80
  6. Step 6: Final answer
    x = 50,555.84

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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.