Home / 86,489.10-119,355.87-50,198.57

Finding the Fourth Proportional to 86,489.10, 119,355.87 and 50,198.57

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Solution

The fourth proportional to 86,489.10, 119,355.87 and 50,198.57 is: 69,274.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,489.10 : 119,355.87 = 50,198.57 : x
  2. Step 2: Convert to fraction form
    86,489.10/119,355.87 = 50,198.57/x
  3. Step 3: Cross multiply
    86,489.10x = 119,355.87 × 50,198.57
  4. Step 4: Simplify right side
    86,489.10x = 5,991,493,807.08
  5. Step 5: Solve for x
    x = 5,991,493,807.08/86,489.10
  6. Step 6: Final answer
    x = 69,274.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.