Home / 80,989.25-121,520.79-41,574.06

Finding the Fourth Proportional to 80,989.25, 121,520.79 and 41,574.06

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Solution

The fourth proportional to 80,989.25, 121,520.79 and 41,574.06 is: 62,380.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,989.25 : 121,520.79 = 41,574.06 : x
  2. Step 2: Convert to fraction form
    80,989.25/121,520.79 = 41,574.06/x
  3. Step 3: Cross multiply
    80,989.25x = 121,520.79 × 41,574.06
  4. Step 4: Simplify right side
    80,989.25x = 5,052,112,406.84
  5. Step 5: Solve for x
    x = 5,052,112,406.84/80,989.25
  6. Step 6: Final answer
    x = 62,380.04

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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.