Home / 41,396.16-57,139.20-39,279.84

Finding the Fourth Proportional to 41,396.16, 57,139.20 and 39,279.84

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Solution

The fourth proportional to 41,396.16, 57,139.20 and 39,279.84 is: 54,218.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,396.16 : 57,139.20 = 39,279.84 : x
  2. Step 2: Convert to fraction form
    41,396.16/57,139.20 = 39,279.84/x
  3. Step 3: Cross multiply
    41,396.16x = 57,139.20 × 39,279.84
  4. Step 4: Simplify right side
    41,396.16x = 2,244,418,633.73
  5. Step 5: Solve for x
    x = 2,244,418,633.73/41,396.16
  6. Step 6: Final answer
    x = 54,218.04

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1.5x scale

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.