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Finding the Fourth Proportional to 68,849.70, 95,012.33 and 38,634.96

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Solution

The fourth proportional to 68,849.70, 95,012.33 and 38,634.96 is: 53,316.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,849.70 : 95,012.33 = 38,634.96 : x
  2. Step 2: Convert to fraction form
    68,849.70/95,012.33 = 38,634.96/x
  3. Step 3: Cross multiply
    68,849.70x = 95,012.33 × 38,634.96
  4. Step 4: Simplify right side
    68,849.70x = 3,670,797,197.73
  5. Step 5: Solve for x
    x = 3,670,797,197.73/68,849.70
  6. Step 6: Final answer
    x = 53,316.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.