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Finding the Fourth Proportional to 87,814.80, 131,527.80 and 72,262.80

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Solution

The fourth proportional to 87,814.80, 131,527.80 and 72,262.80 is: 108,234.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,814.80 : 131,527.80 = 72,262.80 : x
  2. Step 2: Convert to fraction form
    87,814.80/131,527.80 = 72,262.80/x
  3. Step 3: Cross multiply
    87,814.80x = 131,527.80 × 72,262.80
  4. Step 4: Simplify right side
    87,814.80x = 9,504,567,105.84
  5. Step 5: Solve for x
    x = 9,504,567,105.84/87,814.80
  6. Step 6: Final answer
    x = 108,234.23

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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.