Home / 68,748.28-103,155.54-35,469.88

Finding the Fourth Proportional to 68,748.28, 103,155.54 and 35,469.88

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Solution

The fourth proportional to 68,748.28, 103,155.54 and 35,469.88 is: 53,221.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,748.28 : 103,155.54 = 35,469.88 : x
  2. Step 2: Convert to fraction form
    68,748.28/103,155.54 = 35,469.88/x
  3. Step 3: Cross multiply
    68,748.28x = 103,155.54 × 35,469.88
  4. Step 4: Simplify right side
    68,748.28x = 3,658,914,625.14
  5. Step 5: Solve for x
    x = 3,658,914,625.14/68,748.28
  6. Step 6: Final answer
    x = 53,221.91

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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.