Home / 71,781.11-99,067.34-41,166.20

Finding the Fourth Proportional to 71,781.11, 99,067.34 and 41,166.20

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Solution

The fourth proportional to 71,781.11, 99,067.34 and 41,166.20 is: 56,814.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,781.11 : 99,067.34 = 41,166.20 : x
  2. Step 2: Convert to fraction form
    71,781.11/99,067.34 = 41,166.20/x
  3. Step 3: Cross multiply
    71,781.11x = 99,067.34 × 41,166.20
  4. Step 4: Simplify right side
    71,781.11x = 4,078,225,726.08
  5. Step 5: Solve for x
    x = 4,078,225,726.08/71,781.11
  6. Step 6: Final answer
    x = 56,814.75

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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.