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Finding the Fourth Proportional to 80,405.02, 110,922.51 and 50,197.78

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Solution

The fourth proportional to 80,405.02, 110,922.51 and 50,197.78 is: 69,250.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,405.02 : 110,922.51 = 50,197.78 : x
  2. Step 2: Convert to fraction form
    80,405.02/110,922.51 = 50,197.78/x
  3. Step 3: Cross multiply
    80,405.02x = 110,922.51 × 50,197.78
  4. Step 4: Simplify right side
    80,405.02x = 5,568,063,754.03
  5. Step 5: Solve for x
    x = 5,568,063,754.03/80,405.02
  6. Step 6: Final answer
    x = 69,250.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.