Home / 90,629.25-135,908.92-34,439.75

Finding the Fourth Proportional to 90,629.25, 135,908.92 and 34,439.75

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Solution

The fourth proportional to 90,629.25, 135,908.92 and 34,439.75 is: 51,646.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,629.25 : 135,908.92 = 34,439.75 : x
  2. Step 2: Convert to fraction form
    90,629.25/135,908.92 = 34,439.75/x
  3. Step 3: Cross multiply
    90,629.25x = 135,908.92 × 34,439.75
  4. Step 4: Simplify right side
    90,629.25x = 4,680,669,100.73
  5. Step 5: Solve for x
    x = 4,680,669,100.73/90,629.25
  6. Step 6: Final answer
    x = 51,646.34

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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.