Home / 90,414.27-135,665.13-55,334.79

Finding the Fourth Proportional to 90,414.27, 135,665.13 and 55,334.79

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Solution

The fourth proportional to 90,414.27, 135,665.13 and 55,334.79 is: 83,028.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,414.27 : 135,665.13 = 55,334.79 : x
  2. Step 2: Convert to fraction form
    90,414.27/135,665.13 = 55,334.79/x
  3. Step 3: Cross multiply
    90,414.27x = 135,665.13 × 55,334.79
  4. Step 4: Simplify right side
    90,414.27x = 7,507,001,478.87
  5. Step 5: Solve for x
    x = 7,507,001,478.87/90,414.27
  6. Step 6: Final answer
    x = 83,028.95

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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.