Home / 68,371.07-102,522.83-20,974.82

Finding the Fourth Proportional to 68,371.07, 102,522.83 and 20,974.82

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Solution

The fourth proportional to 68,371.07, 102,522.83 and 20,974.82 is: 31,451.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,371.07 : 102,522.83 = 20,974.82 : x
  2. Step 2: Convert to fraction form
    68,371.07/102,522.83 = 20,974.82/x
  3. Step 3: Cross multiply
    68,371.07x = 102,522.83 × 20,974.82
  4. Step 4: Simplify right side
    68,371.07x = 2,150,397,287.65
  5. Step 5: Solve for x
    x = 2,150,397,287.65/68,371.07
  6. Step 6: Final answer
    x = 31,451.86

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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.