Home / 67,629.69-101,378.60-28,198.08

Finding the Fourth Proportional to 67,629.69, 101,378.60 and 28,198.08

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Solution

The fourth proportional to 67,629.69, 101,378.60 and 28,198.08 is: 42,269.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,629.69 : 101,378.60 = 28,198.08 : x
  2. Step 2: Convert to fraction form
    67,629.69/101,378.60 = 28,198.08/x
  3. Step 3: Cross multiply
    67,629.69x = 101,378.60 × 28,198.08
  4. Step 4: Simplify right side
    67,629.69x = 2,858,681,873.09
  5. Step 5: Solve for x
    x = 2,858,681,873.09/67,629.69
  6. Step 6: Final answer
    x = 42,269.63

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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.