Home / 90,245.88-135,346.68-34,091.28

Finding the Fourth Proportional to 90,245.88, 135,346.68 and 34,091.28

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Solution

The fourth proportional to 90,245.88, 135,346.68 and 34,091.28 is: 51,128.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,245.88 : 135,346.68 = 34,091.28 : x
  2. Step 2: Convert to fraction form
    90,245.88/135,346.68 = 34,091.28/x
  3. Step 3: Cross multiply
    90,245.88x = 135,346.68 × 34,091.28
  4. Step 4: Simplify right side
    90,245.88x = 4,614,141,564.95
  5. Step 5: Solve for x
    x = 4,614,141,564.95/90,245.88
  6. Step 6: Final answer
    x = 51,128.56

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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.