Home / 98,318.03-135,662.11-55,286.37

Finding the Fourth Proportional to 98,318.03, 135,662.11 and 55,286.37

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Solution

The fourth proportional to 98,318.03, 135,662.11 and 55,286.37 is: 76,285.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,318.03 : 135,662.11 = 55,286.37 : x
  2. Step 2: Convert to fraction form
    98,318.03/135,662.11 = 55,286.37/x
  3. Step 3: Cross multiply
    98,318.03x = 135,662.11 × 55,286.37
  4. Step 4: Simplify right side
    98,318.03x = 7,500,265,470.22
  5. Step 5: Solve for x
    x = 7,500,265,470.22/98,318.03
  6. Step 6: Final answer
    x = 76,285.76

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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.