Home / 90,469.63-135,667.98-27,270.19

Finding the Fourth Proportional to 90,469.63, 135,667.98 and 27,270.19

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Solution

The fourth proportional to 90,469.63, 135,667.98 and 27,270.19 is: 40,894.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,469.63 : 135,667.98 = 27,270.19 : x
  2. Step 2: Convert to fraction form
    90,469.63/135,667.98 = 27,270.19/x
  3. Step 3: Cross multiply
    90,469.63x = 135,667.98 × 27,270.19
  4. Step 4: Simplify right side
    90,469.63x = 3,699,691,591.52
  5. Step 5: Solve for x
    x = 3,699,691,591.52/90,469.63
  6. Step 6: Final answer
    x = 40,894.29

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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.