Home / 68,982.66-95,205.69-40,311.78

Finding the Fourth Proportional to 68,982.66, 95,205.69 and 40,311.78

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Solution

The fourth proportional to 68,982.66, 95,205.69 and 40,311.78 is: 55,635.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,982.66 : 95,205.69 = 40,311.78 : x
  2. Step 2: Convert to fraction form
    68,982.66/95,205.69 = 40,311.78/x
  3. Step 3: Cross multiply
    68,982.66x = 95,205.69 × 40,311.78
  4. Step 4: Simplify right side
    68,982.66x = 3,837,910,830.03
  5. Step 5: Solve for x
    x = 3,837,910,830.03/68,982.66
  6. Step 6: Final answer
    x = 55,635.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.