Home / 54,872.20-82,311.90-15,430.60

Finding the Fourth Proportional to 54,872.20, 82,311.90 and 15,430.60

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Solution

The fourth proportional to 54,872.20, 82,311.90 and 15,430.60 is: 23,146.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,872.20 : 82,311.90 = 15,430.60 : x
  2. Step 2: Convert to fraction form
    54,872.20/82,311.90 = 15,430.60/x
  3. Step 3: Cross multiply
    54,872.20x = 82,311.90 × 15,430.60
  4. Step 4: Simplify right side
    54,872.20x = 1,270,122,004.14
  5. Step 5: Solve for x
    x = 1,270,122,004.14/54,872.20
  6. Step 6: Final answer
    x = 23,146.91

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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.