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Finding the Fourth Proportional to 49,751.70, 74,627.39 and 20,169.47

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Solution

The fourth proportional to 49,751.70, 74,627.39 and 20,169.47 is: 30,254.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,751.70 : 74,627.39 = 20,169.47 : x
  2. Step 2: Convert to fraction form
    49,751.70/74,627.39 = 20,169.47/x
  3. Step 3: Cross multiply
    49,751.70x = 74,627.39 × 20,169.47
  4. Step 4: Simplify right side
    49,751.70x = 1,505,194,747.47
  5. Step 5: Solve for x
    x = 1,505,194,747.47/49,751.70
  6. Step 6: Final answer
    x = 30,254.13

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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.