Home / 51,515.70-77,279.92-18,229.10

Finding the Fourth Proportional to 51,515.70, 77,279.92 and 18,229.10

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Solution

The fourth proportional to 51,515.70, 77,279.92 and 18,229.10 is: 27,345.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,515.70 : 77,279.92 = 18,229.10 : x
  2. Step 2: Convert to fraction form
    51,515.70/77,279.92 = 18,229.10/x
  3. Step 3: Cross multiply
    51,515.70x = 77,279.92 × 18,229.10
  4. Step 4: Simplify right side
    51,515.70x = 1,408,743,494.94
  5. Step 5: Solve for x
    x = 1,408,743,494.94/51,515.70
  6. Step 6: Final answer
    x = 27,345.91

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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.