Home / 51,976.92-77,991.30-18,704.43

Finding the Fourth Proportional to 51,976.92, 77,991.30 and 18,704.43

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Solution

The fourth proportional to 51,976.92, 77,991.30 and 18,704.43 is: 28,065.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,976.92 : 77,991.30 = 18,704.43 : x
  2. Step 2: Convert to fraction form
    51,976.92/77,991.30 = 18,704.43/x
  3. Step 3: Cross multiply
    51,976.92x = 77,991.30 × 18,704.43
  4. Step 4: Simplify right side
    51,976.92x = 1,458,782,811.46
  5. Step 5: Solve for x
    x = 1,458,782,811.46/51,976.92
  6. Step 6: Final answer
    x = 28,065.97

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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.