Home / 51,540.80-77,286.83-19,965.65

Finding the Fourth Proportional to 51,540.80, 77,286.83 and 19,965.65

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Solution

The fourth proportional to 51,540.80, 77,286.83 and 19,965.65 is: 29,939.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,540.80 : 77,286.83 = 19,965.65 : x
  2. Step 2: Convert to fraction form
    51,540.80/77,286.83 = 19,965.65/x
  3. Step 3: Cross multiply
    51,540.80x = 77,286.83 × 19,965.65
  4. Step 4: Simplify right side
    51,540.80x = 1,543,081,797.39
  5. Step 5: Solve for x
    x = 1,543,081,797.39/51,540.80
  6. Step 6: Final answer
    x = 29,939.03

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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.