Home / 81,396.23-122,098.96-25,244.32

Finding the Fourth Proportional to 81,396.23, 122,098.96 and 25,244.32

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Solution

The fourth proportional to 81,396.23, 122,098.96 and 25,244.32 is: 37,867.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,396.23 : 122,098.96 = 25,244.32 : x
  2. Step 2: Convert to fraction form
    81,396.23/122,098.96 = 25,244.32/x
  3. Step 3: Cross multiply
    81,396.23x = 122,098.96 × 25,244.32
  4. Step 4: Simplify right side
    81,396.23x = 3,082,305,217.91
  5. Step 5: Solve for x
    x = 3,082,305,217.91/81,396.23
  6. Step 6: Final answer
    x = 37,867.91

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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.