Home / 48,213.20-72,319.80-13,152.80

Finding the Fourth Proportional to 48,213.20, 72,319.80 and 13,152.80

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Solution

The fourth proportional to 48,213.20, 72,319.80 and 13,152.80 is: 19,729.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,213.20 : 72,319.80 = 13,152.80 : x
  2. Step 2: Convert to fraction form
    48,213.20/72,319.80 = 13,152.80/x
  3. Step 3: Cross multiply
    48,213.20x = 72,319.80 × 13,152.80
  4. Step 4: Simplify right side
    48,213.20x = 951,207,865.44
  5. Step 5: Solve for x
    x = 951,207,865.44/48,213.20
  6. Step 6: Final answer
    x = 19,729.20

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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.