Home / 67,182.30-100,738.59-19,791.24

Finding the Fourth Proportional to 67,182.30, 100,738.59 and 19,791.24

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Solution

The fourth proportional to 67,182.30, 100,738.59 and 19,791.24 is: 29,676.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,182.30 : 100,738.59 = 19,791.24 : x
  2. Step 2: Convert to fraction form
    67,182.30/100,738.59 = 19,791.24/x
  3. Step 3: Cross multiply
    67,182.30x = 100,738.59 × 19,791.24
  4. Step 4: Simplify right side
    67,182.30x = 1,993,741,611.95
  5. Step 5: Solve for x
    x = 1,993,741,611.95/67,182.30
  6. Step 6: Final answer
    x = 29,676.59

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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.