Home / 87,722.82-131,583.08-21,162.48

Finding the Fourth Proportional to 87,722.82, 131,583.08 and 21,162.48

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Solution

The fourth proportional to 87,722.82, 131,583.08 and 21,162.48 is: 31,743.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,722.82 : 131,583.08 = 21,162.48 : x
  2. Step 2: Convert to fraction form
    87,722.82/131,583.08 = 21,162.48/x
  3. Step 3: Cross multiply
    87,722.82x = 131,583.08 × 21,162.48
  4. Step 4: Simplify right side
    87,722.82x = 2,784,624,298.84
  5. Step 5: Solve for x
    x = 2,784,624,298.84/87,722.82
  6. Step 6: Final answer
    x = 31,743.44

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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.