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Finding the Fourth Proportional to 33,010.20, 49,400.10 and 30,245.40

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Solution

The fourth proportional to 33,010.20, 49,400.10 and 30,245.40 is: 45,262.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,010.20 : 49,400.10 = 30,245.40 : x
  2. Step 2: Convert to fraction form
    33,010.20/49,400.10 = 30,245.40/x
  3. Step 3: Cross multiply
    33,010.20x = 49,400.10 × 30,245.40
  4. Step 4: Simplify right side
    33,010.20x = 1,494,125,784.54
  5. Step 5: Solve for x
    x = 1,494,125,784.54/33,010.20
  6. Step 6: Final answer
    x = 45,262.55

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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.