Home / 90,519.66-135,662.34-50,537.60

Finding the Fourth Proportional to 90,519.66, 135,662.34 and 50,537.60

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Solution

The fourth proportional to 90,519.66, 135,662.34 and 50,537.60 is: 75,740.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,519.66 : 135,662.34 = 50,537.60 : x
  2. Step 2: Convert to fraction form
    90,519.66/135,662.34 = 50,537.60/x
  3. Step 3: Cross multiply
    90,519.66x = 135,662.34 × 50,537.60
  4. Step 4: Simplify right side
    90,519.66x = 6,856,049,073.98
  5. Step 5: Solve for x
    x = 6,856,049,073.98/90,519.66
  6. Step 6: Final answer
    x = 75,740.99

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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.