Home / 54,880.20-82,320.30-15,438.60

Finding the Fourth Proportional to 54,880.20, 82,320.30 and 15,438.60

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Solution

The fourth proportional to 54,880.20, 82,320.30 and 15,438.60 is: 23,157.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,880.20 : 82,320.30 = 15,438.60 : x
  2. Step 2: Convert to fraction form
    54,880.20/82,320.30 = 15,438.60/x
  3. Step 3: Cross multiply
    54,880.20x = 82,320.30 × 15,438.60
  4. Step 4: Simplify right side
    54,880.20x = 1,270,910,183.58
  5. Step 5: Solve for x
    x = 1,270,910,183.58/54,880.20
  6. Step 6: Final answer
    x = 23,157.90

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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.