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Finding the Fourth Proportional to 48,843.20, 73,207.20 and 20,763.20

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Solution

The fourth proportional to 48,843.20, 73,207.20 and 20,763.20 is: 31,120.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,843.20 : 73,207.20 = 20,763.20 : x
  2. Step 2: Convert to fraction form
    48,843.20/73,207.20 = 20,763.20/x
  3. Step 3: Cross multiply
    48,843.20x = 73,207.20 × 20,763.20
  4. Step 4: Simplify right side
    48,843.20x = 1,520,015,735.04
  5. Step 5: Solve for x
    x = 1,520,015,735.04/48,843.20
  6. Step 6: Final answer
    x = 31,120.31

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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.