Home / 90,183.66-135,275.49-50,769.06

Finding the Fourth Proportional to 90,183.66, 135,275.49 and 50,769.06

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Solution

The fourth proportional to 90,183.66, 135,275.49 and 50,769.06 is: 76,153.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,183.66 : 135,275.49 = 50,769.06 : x
  2. Step 2: Convert to fraction form
    90,183.66/135,275.49 = 50,769.06/x
  3. Step 3: Cross multiply
    90,183.66x = 135,275.49 × 50,769.06
  4. Step 4: Simplify right side
    90,183.66x = 6,867,809,468.34
  5. Step 5: Solve for x
    x = 6,867,809,468.34/90,183.66
  6. Step 6: Final answer
    x = 76,153.59

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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.