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Finding the Fourth Proportional to 71,467.20, 107,200.80 and 49,348.80

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Solution

The fourth proportional to 71,467.20, 107,200.80 and 49,348.80 is: 74,023.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,467.20 : 107,200.80 = 49,348.80 : x
  2. Step 2: Convert to fraction form
    71,467.20/107,200.80 = 49,348.80/x
  3. Step 3: Cross multiply
    71,467.20x = 107,200.80 × 49,348.80
  4. Step 4: Simplify right side
    71,467.20x = 5,290,230,839.04
  5. Step 5: Solve for x
    x = 5,290,230,839.04/71,467.20
  6. Step 6: Final answer
    x = 74,023.20

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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.