Home / 87,865.84-131,797.52-21,306.56

Finding the Fourth Proportional to 87,865.84, 131,797.52 and 21,306.56

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Solution

The fourth proportional to 87,865.84, 131,797.52 and 21,306.56 is: 31,959.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,865.84 : 131,797.52 = 21,306.56 : x
  2. Step 2: Convert to fraction form
    87,865.84/131,797.52 = 21,306.56/x
  3. Step 3: Cross multiply
    87,865.84x = 131,797.52 × 21,306.56
  4. Step 4: Simplify right side
    87,865.84x = 2,808,151,767.73
  5. Step 5: Solve for x
    x = 2,808,151,767.73/87,865.84
  6. Step 6: Final answer
    x = 31,959.54

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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.