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Finding the Fourth Proportional to 80,599.74, 120,993.02 and 43,232.79

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Solution

The fourth proportional to 80,599.74, 120,993.02 and 43,232.79 is: 64,899.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,599.74 : 120,993.02 = 43,232.79 : x
  2. Step 2: Convert to fraction form
    80,599.74/120,993.02 = 43,232.79/x
  3. Step 3: Cross multiply
    80,599.74x = 120,993.02 × 43,232.79
  4. Step 4: Simplify right side
    80,599.74x = 5,230,865,608.96
  5. Step 5: Solve for x
    x = 5,230,865,608.96/80,599.74
  6. Step 6: Final answer
    x = 64,899.29

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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.