Home / 87,823.83-131,736.08-21,263.86

Finding the Fourth Proportional to 87,823.83, 131,736.08 and 21,263.86

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Solution

The fourth proportional to 87,823.83, 131,736.08 and 21,263.86 is: 31,895.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,823.83 : 131,736.08 = 21,263.86 : x
  2. Step 2: Convert to fraction form
    87,823.83/131,736.08 = 21,263.86/x
  3. Step 3: Cross multiply
    87,823.83x = 131,736.08 × 21,263.86
  4. Step 4: Simplify right side
    87,823.83x = 2,801,217,562.07
  5. Step 5: Solve for x
    x = 2,801,217,562.07/87,823.83
  6. Step 6: Final answer
    x = 31,895.87

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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.