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Finding the Fourth Proportional to 87,343.88, 120,537.78 and 49,624.52

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Solution

The fourth proportional to 87,343.88, 120,537.78 and 49,624.52 is: 68,483.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,343.88 : 120,537.78 = 49,624.52 : x
  2. Step 2: Convert to fraction form
    87,343.88/120,537.78 = 49,624.52/x
  3. Step 3: Cross multiply
    87,343.88x = 120,537.78 × 49,624.52
  4. Step 4: Simplify right side
    87,343.88x = 5,981,629,474.37
  5. Step 5: Solve for x
    x = 5,981,629,474.37/87,343.88
  6. Step 6: Final answer
    x = 68,483.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.