Home / 29,139.75-43,704.75-8,081.94

Finding the Fourth Proportional to 29,139.75, 43,704.75 and 8,081.94

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Solution

The fourth proportional to 29,139.75, 43,704.75 and 8,081.94 is: 12,121.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,139.75 : 43,704.75 = 8,081.94 : x
  2. Step 2: Convert to fraction form
    29,139.75/43,704.75 = 8,081.94/x
  3. Step 3: Cross multiply
    29,139.75x = 43,704.75 × 8,081.94
  4. Step 4: Simplify right side
    29,139.75x = 353,219,167.22
  5. Step 5: Solve for x
    x = 353,219,167.22/29,139.75
  6. Step 6: Final answer
    x = 12,121.56

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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.