Home / 80,954.05-121,441.26-43,462.60

Finding the Fourth Proportional to 80,954.05, 121,441.26 and 43,462.60

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Solution

The fourth proportional to 80,954.05, 121,441.26 and 43,462.60 is: 65,199.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,954.05 : 121,441.26 = 43,462.60 : x
  2. Step 2: Convert to fraction form
    80,954.05/121,441.26 = 43,462.60/x
  3. Step 3: Cross multiply
    80,954.05x = 121,441.26 × 43,462.60
  4. Step 4: Simplify right side
    80,954.05x = 5,278,152,906.88
  5. Step 5: Solve for x
    x = 5,278,152,906.88/80,954.05
  6. Step 6: Final answer
    x = 65,199.37

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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.