Home / 90,067.82-124,286.10-49,781.59

Finding the Fourth Proportional to 90,067.82, 124,286.10 and 49,781.59

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Solution

The fourth proportional to 90,067.82, 124,286.10 and 49,781.59 is: 68,694.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,067.82 : 124,286.10 = 49,781.59 : x
  2. Step 2: Convert to fraction form
    90,067.82/124,286.10 = 49,781.59/x
  3. Step 3: Cross multiply
    90,067.82x = 124,286.10 × 49,781.59
  4. Step 4: Simplify right side
    90,067.82x = 6,187,159,175.50
  5. Step 5: Solve for x
    x = 6,187,159,175.50/90,067.82
  6. Step 6: Final answer
    x = 68,694.45

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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.