Home / 71,896.19-107,844.56-21,976.09

Finding the Fourth Proportional to 71,896.19, 107,844.56 and 21,976.09

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Solution

The fourth proportional to 71,896.19, 107,844.56 and 21,976.09 is: 32,964.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,896.19 : 107,844.56 = 21,976.09 : x
  2. Step 2: Convert to fraction form
    71,896.19/107,844.56 = 21,976.09/x
  3. Step 3: Cross multiply
    71,896.19x = 107,844.56 × 21,976.09
  4. Step 4: Simplify right side
    71,896.19x = 2,370,002,081.12
  5. Step 5: Solve for x
    x = 2,370,002,081.12/71,896.19
  6. Step 6: Final answer
    x = 32,964.22

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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.