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Finding the Fourth Proportional to 83,195.80, 124,842.30 and 30,610.60

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Solution

The fourth proportional to 83,195.80, 124,842.30 and 30,610.60 is: 45,933.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,195.80 : 124,842.30 = 30,610.60 : x
  2. Step 2: Convert to fraction form
    83,195.80/124,842.30 = 30,610.60/x
  3. Step 3: Cross multiply
    83,195.80x = 124,842.30 × 30,610.60
  4. Step 4: Simplify right side
    83,195.80x = 3,821,497,708.38
  5. Step 5: Solve for x
    x = 3,821,497,708.38/83,195.80
  6. Step 6: Final answer
    x = 45,933.78

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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.