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Finding the Fourth Proportional to 110,049.60, 165,074.40 and 39,919.80

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Solution

The fourth proportional to 110,049.60, 165,074.40 and 39,919.80 is: 59,879.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,049.60 : 165,074.40 = 39,919.80 : x
  2. Step 2: Convert to fraction form
    110,049.60/165,074.40 = 39,919.80/x
  3. Step 3: Cross multiply
    110,049.60x = 165,074.40 × 39,919.80
  4. Step 4: Simplify right side
    110,049.60x = 6,589,737,033.12
  5. Step 5: Solve for x
    x = 6,589,737,033.12/110,049.60
  6. Step 6: Final answer
    x = 59,879.70

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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.