Home / 90,518.30-135,789.36-33,584.45

Finding the Fourth Proportional to 90,518.30, 135,789.36 and 33,584.45

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Solution

The fourth proportional to 90,518.30, 135,789.36 and 33,584.45 is: 50,381.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,518.30 : 135,789.36 = 33,584.45 : x
  2. Step 2: Convert to fraction form
    90,518.30/135,789.36 = 33,584.45/x
  3. Step 3: Cross multiply
    90,518.30x = 135,789.36 × 33,584.45
  4. Step 4: Simplify right side
    90,518.30x = 4,560,410,292.51
  5. Step 5: Solve for x
    x = 4,560,410,292.51/90,518.30
  6. Step 6: Final answer
    x = 50,381.09

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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.