Home / 49,788.09-68,709.21-27,128.88

Finding the Fourth Proportional to 49,788.09, 68,709.21 and 27,128.88

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Solution

The fourth proportional to 49,788.09, 68,709.21 and 27,128.88 is: 37,438.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,788.09 : 68,709.21 = 27,128.88 : x
  2. Step 2: Convert to fraction form
    49,788.09/68,709.21 = 27,128.88/x
  3. Step 3: Cross multiply
    49,788.09x = 68,709.21 × 27,128.88
  4. Step 4: Simplify right side
    49,788.09x = 1,864,003,912.98
  5. Step 5: Solve for x
    x = 1,864,003,912.98/49,788.09
  6. Step 6: Final answer
    x = 37,438.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.