Home / 71,418.36-107,143.74-49,240.56

Finding the Fourth Proportional to 71,418.36, 107,143.74 and 49,240.56

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Solution

The fourth proportional to 71,418.36, 107,143.74 and 49,240.56 is: 73,872.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,418.36 : 107,143.74 = 49,240.56 : x
  2. Step 2: Convert to fraction form
    71,418.36/107,143.74 = 49,240.56/x
  3. Step 3: Cross multiply
    71,418.36x = 107,143.74 × 49,240.56
  4. Step 4: Simplify right side
    71,418.36x = 5,275,817,758.09
  5. Step 5: Solve for x
    x = 5,275,817,758.09/71,418.36
  6. Step 6: Final answer
    x = 73,872.01

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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.