Home / 68,626.24-102,940.57-18,711.61

Finding the Fourth Proportional to 68,626.24, 102,940.57 and 18,711.61

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Solution

The fourth proportional to 68,626.24, 102,940.57 and 18,711.61 is: 28,067.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,626.24 : 102,940.57 = 18,711.61 : x
  2. Step 2: Convert to fraction form
    68,626.24/102,940.57 = 18,711.61/x
  3. Step 3: Cross multiply
    68,626.24x = 102,940.57 × 18,711.61
  4. Step 4: Simplify right side
    68,626.24x = 1,926,183,565.06
  5. Step 5: Solve for x
    x = 1,926,183,565.06/68,626.24
  6. Step 6: Final answer
    x = 28,067.74

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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.