Home / 51,379.33-77,072.78-21,793.81

Finding the Fourth Proportional to 51,379.33, 77,072.78 and 21,793.81

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Solution

The fourth proportional to 51,379.33, 77,072.78 and 21,793.81 is: 32,692.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,379.33 : 77,072.78 = 21,793.81 : x
  2. Step 2: Convert to fraction form
    51,379.33/77,072.78 = 21,793.81/x
  3. Step 3: Cross multiply
    51,379.33x = 77,072.78 × 21,793.81
  4. Step 4: Simplify right side
    51,379.33x = 1,679,709,414.52
  5. Step 5: Solve for x
    x = 1,679,709,414.52/51,379.33
  6. Step 6: Final answer
    x = 32,692.32

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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.