Home / 80,989.37-121,520.97-41,574.18

Finding the Fourth Proportional to 80,989.37, 121,520.97 and 41,574.18

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Solution

The fourth proportional to 80,989.37, 121,520.97 and 41,574.18 is: 62,380.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,989.37 : 121,520.97 = 41,574.18 : x
  2. Step 2: Convert to fraction form
    80,989.37/121,520.97 = 41,574.18/x
  3. Step 3: Cross multiply
    80,989.37x = 121,520.97 × 41,574.18
  4. Step 4: Simplify right side
    80,989.37x = 5,052,134,680.55
  5. Step 5: Solve for x
    x = 5,052,134,680.55/80,989.37
  6. Step 6: Final answer
    x = 62,380.22

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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.