Home / 71,723.63-98,977.21-39,891.85

Finding the Fourth Proportional to 71,723.63, 98,977.21 and 39,891.85

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Solution

The fourth proportional to 71,723.63, 98,977.21 and 39,891.85 is: 55,049.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,723.63 : 98,977.21 = 39,891.85 : x
  2. Step 2: Convert to fraction form
    71,723.63/98,977.21 = 39,891.85/x
  3. Step 3: Cross multiply
    71,723.63x = 98,977.21 × 39,891.85
  4. Step 4: Simplify right side
    71,723.63x = 3,948,383,667.57
  5. Step 5: Solve for x
    x = 3,948,383,667.57/71,723.63
  6. Step 6: Final answer
    x = 55,049.97

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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.