Home / 87,867.84-131,800.52-21,308.56

Finding the Fourth Proportional to 87,867.84, 131,800.52 and 21,308.56

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Solution

The fourth proportional to 87,867.84, 131,800.52 and 21,308.56 is: 31,962.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,867.84 : 131,800.52 = 21,308.56 : x
  2. Step 2: Convert to fraction form
    87,867.84/131,800.52 = 21,308.56/x
  3. Step 3: Cross multiply
    87,867.84x = 131,800.52 × 21,308.56
  4. Step 4: Simplify right side
    87,867.84x = 2,808,479,288.45
  5. Step 5: Solve for x
    x = 2,808,479,288.45/87,867.84
  6. Step 6: Final answer
    x = 31,962.54

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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.