Home / 90,405.30-135,576.48-37,081.92

Finding the Fourth Proportional to 90,405.30, 135,576.48 and 37,081.92

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Solution

The fourth proportional to 90,405.30, 135,576.48 and 37,081.92 is: 55,609.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,405.30 : 135,576.48 = 37,081.92 : x
  2. Step 2: Convert to fraction form
    90,405.30/135,576.48 = 37,081.92/x
  3. Step 3: Cross multiply
    90,405.30x = 135,576.48 × 37,081.92
  4. Step 4: Simplify right side
    90,405.30x = 5,027,436,185.24
  5. Step 5: Solve for x
    x = 5,027,436,185.24/90,405.30
  6. Step 6: Final answer
    x = 55,609.97

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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.