Home / 51,198.34-76,815-31,247.80

Finding the Fourth Proportional to 51,198.34, 76,815 and 31,247.80

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Solution

The fourth proportional to 51,198.34, 76,815 and 31,247.80 is: 46,882.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,198.34 : 76,815 = 31,247.80 : x
  2. Step 2: Convert to fraction form
    51,198.34/76,815 = 31,247.80/x
  3. Step 3: Cross multiply
    51,198.34x = 76,815 × 31,247.80
  4. Step 4: Simplify right side
    51,198.34x = 2,400,299,757
  5. Step 5: Solve for x
    x = 2,400,299,757/51,198.34
  6. Step 6: Final answer
    x = 46,882.37

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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.