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Finding the Fourth Proportional to 71,067.88, 98,082.27 and 40,448.42

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Solution

The fourth proportional to 71,067.88, 98,082.27 and 40,448.42 is: 55,823.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,067.88 : 98,082.27 = 40,448.42 : x
  2. Step 2: Convert to fraction form
    71,067.88/98,082.27 = 40,448.42/x
  3. Step 3: Cross multiply
    71,067.88x = 98,082.27 × 40,448.42
  4. Step 4: Simplify right side
    71,067.88x = 3,967,272,842.67
  5. Step 5: Solve for x
    x = 3,967,272,842.67/71,067.88
  6. Step 6: Final answer
    x = 55,823.71

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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.