Home / 45,043.20-67,564.80-44,121.60

Finding the Fourth Proportional to 45,043.20, 67,564.80 and 44,121.60

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Solution

The fourth proportional to 45,043.20, 67,564.80 and 44,121.60 is: 66,182.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,043.20 : 67,564.80 = 44,121.60 : x
  2. Step 2: Convert to fraction form
    45,043.20/67,564.80 = 44,121.60/x
  3. Step 3: Cross multiply
    45,043.20x = 67,564.80 × 44,121.60
  4. Step 4: Simplify right side
    45,043.20x = 2,981,067,079.68
  5. Step 5: Solve for x
    x = 2,981,067,079.68/45,043.20
  6. Step 6: Final answer
    x = 66,182.40

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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.