Home / 90,209.69-135,289.86-50,179.35

Finding the Fourth Proportional to 90,209.69, 135,289.86 and 50,179.35

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Solution

The fourth proportional to 90,209.69, 135,289.86 and 50,179.35 is: 75,255.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,209.69 : 135,289.86 = 50,179.35 : x
  2. Step 2: Convert to fraction form
    90,209.69/135,289.86 = 50,179.35/x
  3. Step 3: Cross multiply
    90,209.69x = 135,289.86 × 50,179.35
  4. Step 4: Simplify right side
    90,209.69x = 6,788,757,236.39
  5. Step 5: Solve for x
    x = 6,788,757,236.39/90,209.69
  6. Step 6: Final answer
    x = 75,255.30

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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.