Home / 90,579.78-135,826.35-33,614.58

Finding the Fourth Proportional to 90,579.78, 135,826.35 and 33,614.58

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Solution

The fourth proportional to 90,579.78, 135,826.35 and 33,614.58 is: 50,405.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,579.78 : 135,826.35 = 33,614.58 : x
  2. Step 2: Convert to fraction form
    90,579.78/135,826.35 = 33,614.58/x
  3. Step 3: Cross multiply
    90,579.78x = 135,826.35 × 33,614.58
  4. Step 4: Simplify right side
    90,579.78x = 4,565,745,708.18
  5. Step 5: Solve for x
    x = 4,565,745,708.18/90,579.78
  6. Step 6: Final answer
    x = 50,405.79

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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.