Home / 82,182.78-123,325.20-52,621.83

Finding the Fourth Proportional to 82,182.78, 123,325.20 and 52,621.83

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Solution

The fourth proportional to 82,182.78, 123,325.20 and 52,621.83 is: 78,965.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,182.78 : 123,325.20 = 52,621.83 : x
  2. Step 2: Convert to fraction form
    82,182.78/123,325.20 = 52,621.83/x
  3. Step 3: Cross multiply
    82,182.78x = 123,325.20 × 52,621.83
  4. Step 4: Simplify right side
    82,182.78x = 6,489,597,709.12
  5. Step 5: Solve for x
    x = 6,489,597,709.12/82,182.78
  6. Step 6: Final answer
    x = 78,965.42

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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.