Home / 68,661.96-102,909.77-29,136.04

Finding the Fourth Proportional to 68,661.96, 102,909.77 and 29,136.04

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Solution

The fourth proportional to 68,661.96, 102,909.77 and 29,136.04 is: 43,668.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,661.96 : 102,909.77 = 29,136.04 : x
  2. Step 2: Convert to fraction form
    68,661.96/102,909.77 = 29,136.04/x
  3. Step 3: Cross multiply
    68,661.96x = 102,909.77 × 29,136.04
  4. Step 4: Simplify right side
    68,661.96x = 2,998,382,660.56
  5. Step 5: Solve for x
    x = 2,998,382,660.56/68,661.96
  6. Step 6: Final answer
    x = 43,668.76

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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.