Home / 41,772.80-62,661.60-12,195.20

Finding the Fourth Proportional to 41,772.80, 62,661.60 and 12,195.20

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Solution

The fourth proportional to 41,772.80, 62,661.60 and 12,195.20 is: 18,293.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,772.80 : 62,661.60 = 12,195.20 : x
  2. Step 2: Convert to fraction form
    41,772.80/62,661.60 = 12,195.20/x
  3. Step 3: Cross multiply
    41,772.80x = 62,661.60 × 12,195.20
  4. Step 4: Simplify right side
    41,772.80x = 764,170,744.32
  5. Step 5: Solve for x
    x = 764,170,744.32/41,772.80
  6. Step 6: Final answer
    x = 18,293.50

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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.