Home / 81,231.91-121,851.06-25,067.02

Finding the Fourth Proportional to 81,231.91, 121,851.06 and 25,067.02

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Solution

The fourth proportional to 81,231.91, 121,851.06 and 25,067.02 is: 37,601.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,231.91 : 121,851.06 = 25,067.02 : x
  2. Step 2: Convert to fraction form
    81,231.91/121,851.06 = 25,067.02/x
  3. Step 3: Cross multiply
    81,231.91x = 121,851.06 × 25,067.02
  4. Step 4: Simplify right side
    81,231.91x = 3,054,442,958.04
  5. Step 5: Solve for x
    x = 3,054,442,958.04/81,231.91
  6. Step 6: Final answer
    x = 37,601.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.