Home / 72,634.20-108,951.30-20,043.60

Finding the Fourth Proportional to 72,634.20, 108,951.30 and 20,043.60

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Solution

The fourth proportional to 72,634.20, 108,951.30 and 20,043.60 is: 30,065.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,634.20 : 108,951.30 = 20,043.60 : x
  2. Step 2: Convert to fraction form
    72,634.20/108,951.30 = 20,043.60/x
  3. Step 3: Cross multiply
    72,634.20x = 108,951.30 × 20,043.60
  4. Step 4: Simplify right side
    72,634.20x = 2,183,776,276.68
  5. Step 5: Solve for x
    x = 2,183,776,276.68/72,634.20
  6. Step 6: Final answer
    x = 30,065.40

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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.