Home / 52,450.91-78,709.17-21,286.16

Finding the Fourth Proportional to 52,450.91, 78,709.17 and 21,286.16

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Solution

The fourth proportional to 52,450.91, 78,709.17 and 21,286.16 is: 31,942.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,450.91 : 78,709.17 = 21,286.16 : x
  2. Step 2: Convert to fraction form
    52,450.91/78,709.17 = 21,286.16/x
  3. Step 3: Cross multiply
    52,450.91x = 78,709.17 × 21,286.16
  4. Step 4: Simplify right side
    52,450.91x = 1,675,415,592.54
  5. Step 5: Solve for x
    x = 1,675,415,592.54/52,450.91
  6. Step 6: Final answer
    x = 31,942.55

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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.