Home / 81,006.06-121,535.73-38,329.82

Finding the Fourth Proportional to 81,006.06, 121,535.73 and 38,329.82

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Solution

The fourth proportional to 81,006.06, 121,535.73 and 38,329.82 is: 57,507.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,006.06 : 121,535.73 = 38,329.82 : x
  2. Step 2: Convert to fraction form
    81,006.06/121,535.73 = 38,329.82/x
  3. Step 3: Cross multiply
    81,006.06x = 121,535.73 × 38,329.82
  4. Step 4: Simplify right side
    81,006.06x = 4,658,442,046.79
  5. Step 5: Solve for x
    x = 4,658,442,046.79/81,006.06
  6. Step 6: Final answer
    x = 57,507.33

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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.