Home / 81,324.33-121,923.95-41,310.43

Finding the Fourth Proportional to 81,324.33, 121,923.95 and 41,310.43

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Solution

The fourth proportional to 81,324.33, 121,923.95 and 41,310.43 is: 61,933.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,324.33 : 121,923.95 = 41,310.43 : x
  2. Step 2: Convert to fraction form
    81,324.33/121,923.95 = 41,310.43/x
  3. Step 3: Cross multiply
    81,324.33x = 121,923.95 × 41,310.43
  4. Step 4: Simplify right side
    81,324.33x = 5,036,730,801.80
  5. Step 5: Solve for x
    x = 5,036,730,801.80/81,324.33
  6. Step 6: Final answer
    x = 61,933.87

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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.