Home / 72,766.26-109,149.40-20,175.75

Finding the Fourth Proportional to 72,766.26, 109,149.40 and 20,175.75

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Solution

The fourth proportional to 72,766.26, 109,149.40 and 20,175.75 is: 30,263.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,766.26 : 109,149.40 = 20,175.75 : x
  2. Step 2: Convert to fraction form
    72,766.26/109,149.40 = 20,175.75/x
  3. Step 3: Cross multiply
    72,766.26x = 109,149.40 × 20,175.75
  4. Step 4: Simplify right side
    72,766.26x = 2,202,171,007.05
  5. Step 5: Solve for x
    x = 2,202,171,007.05/72,766.26
  6. Step 6: Final answer
    x = 30,263.63

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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.