Home / 67,338.37-100,997.83-20,578.69

Finding the Fourth Proportional to 67,338.37, 100,997.83 and 20,578.69

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Solution

The fourth proportional to 67,338.37, 100,997.83 and 20,578.69 is: 30,865.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,338.37 : 100,997.83 = 20,578.69 : x
  2. Step 2: Convert to fraction form
    67,338.37/100,997.83 = 20,578.69/x
  3. Step 3: Cross multiply
    67,338.37x = 100,997.83 × 20,578.69
  4. Step 4: Simplify right side
    67,338.37x = 2,078,403,034.24
  5. Step 5: Solve for x
    x = 2,078,403,034.24/67,338.37
  6. Step 6: Final answer
    x = 30,865.06

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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.