Home / 90,399.78-135,589.28-23,845.19

Finding the Fourth Proportional to 90,399.78, 135,589.28 and 23,845.19

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Solution

The fourth proportional to 90,399.78, 135,589.28 and 23,845.19 is: 35,765.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,399.78 : 135,589.28 = 23,845.19 : x
  2. Step 2: Convert to fraction form
    90,399.78/135,589.28 = 23,845.19/x
  3. Step 3: Cross multiply
    90,399.78x = 135,589.28 × 23,845.19
  4. Step 4: Simplify right side
    90,399.78x = 3,233,151,346.39
  5. Step 5: Solve for x
    x = 3,233,151,346.39/90,399.78
  6. Step 6: Final answer
    x = 35,765.04

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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.