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Finding the Fourth Proportional to 83,230.96, 124,891.78 and 30,632.80

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Solution

The fourth proportional to 83,230.96, 124,891.78 and 30,632.80 is: 45,965.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,230.96 : 124,891.78 = 30,632.80 : x
  2. Step 2: Convert to fraction form
    83,230.96/124,891.78 = 30,632.80/x
  3. Step 3: Cross multiply
    83,230.96x = 124,891.78 × 30,632.80
  4. Step 4: Simplify right side
    83,230.96x = 3,825,784,918.38
  5. Step 5: Solve for x
    x = 3,825,784,918.38/83,230.96
  6. Step 6: Final answer
    x = 45,965.89

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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.