Home / 82,396.90-123,563.31-28,351.27

Finding the Fourth Proportional to 82,396.90, 123,563.31 and 28,351.27

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Solution

The fourth proportional to 82,396.90, 123,563.31 and 28,351.27 is: 42,515.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,396.90 : 123,563.31 = 28,351.27 : x
  2. Step 2: Convert to fraction form
    82,396.90/123,563.31 = 28,351.27/x
  3. Step 3: Cross multiply
    82,396.90x = 123,563.31 × 28,351.27
  4. Step 4: Simplify right side
    82,396.90x = 3,503,176,763.90
  5. Step 5: Solve for x
    x = 3,503,176,763.90/82,396.90
  6. Step 6: Final answer
    x = 42,515.88

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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.