Home / 90,331.34-135,491.87-27,150.19

Finding the Fourth Proportional to 90,331.34, 135,491.87 and 27,150.19

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Solution

The fourth proportional to 90,331.34, 135,491.87 and 27,150.19 is: 40,723.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,331.34 : 135,491.87 = 27,150.19 : x
  2. Step 2: Convert to fraction form
    90,331.34/135,491.87 = 27,150.19/x
  3. Step 3: Cross multiply
    90,331.34x = 135,491.87 × 27,150.19
  4. Step 4: Simplify right side
    90,331.34x = 3,678,629,743.10
  5. Step 5: Solve for x
    x = 3,678,629,743.10/90,331.34
  6. Step 6: Final answer
    x = 40,723.74

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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.