Home / 90,486.20-135,773.46-64,002.36

Finding the Fourth Proportional to 90,486.20, 135,773.46 and 64,002.36

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Solution

The fourth proportional to 90,486.20, 135,773.46 and 64,002.36 is: 96,034.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,486.20 : 135,773.46 = 64,002.36 : x
  2. Step 2: Convert to fraction form
    90,486.20/135,773.46 = 64,002.36/x
  3. Step 3: Cross multiply
    90,486.20x = 135,773.46 × 64,002.36
  4. Step 4: Simplify right side
    90,486.20x = 8,689,821,865.37
  5. Step 5: Solve for x
    x = 8,689,821,865.37/90,486.20
  6. Step 6: Final answer
    x = 96,034.78

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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.