Home / 80,147.47-120,245.27-23,989.41

Finding the Fourth Proportional to 80,147.47, 120,245.27 and 23,989.41

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Solution

The fourth proportional to 80,147.47, 120,245.27 and 23,989.41 is: 35,991.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,147.47 : 120,245.27 = 23,989.41 : x
  2. Step 2: Convert to fraction form
    80,147.47/120,245.27 = 23,989.41/x
  3. Step 3: Cross multiply
    80,147.47x = 120,245.27 × 23,989.41
  4. Step 4: Simplify right side
    80,147.47x = 2,884,613,142.56
  5. Step 5: Solve for x
    x = 2,884,613,142.56/80,147.47
  6. Step 6: Final answer
    x = 35,991.32

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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.