Home / 68,843.91-103,267-18,923.70

Finding the Fourth Proportional to 68,843.91, 103,267 and 18,923.70

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Solution

The fourth proportional to 68,843.91, 103,267 and 18,923.70 is: 28,385.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,843.91 : 103,267 = 18,923.70 : x
  2. Step 2: Convert to fraction form
    68,843.91/103,267 = 18,923.70/x
  3. Step 3: Cross multiply
    68,843.91x = 103,267 × 18,923.70
  4. Step 4: Simplify right side
    68,843.91x = 1,954,193,727.90
  5. Step 5: Solve for x
    x = 1,954,193,727.90/68,843.91
  6. Step 6: Final answer
    x = 28,385.86

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1.5x scale

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.