Home / 71,936.56-107,908.08-52,120.72

Finding the Fourth Proportional to 71,936.56, 107,908.08 and 52,120.72

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Solution

The fourth proportional to 71,936.56, 107,908.08 and 52,120.72 is: 78,183.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,936.56 : 107,908.08 = 52,120.72 : x
  2. Step 2: Convert to fraction form
    71,936.56/107,908.08 = 52,120.72/x
  3. Step 3: Cross multiply
    71,936.56x = 107,908.08 × 52,120.72
  4. Step 4: Simplify right side
    71,936.56x = 5,624,246,823.42
  5. Step 5: Solve for x
    x = 5,624,246,823.42/71,936.56
  6. Step 6: Final answer
    x = 78,183.43

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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.