Home / 90,400.33-135,447.40-54,753.94

Finding the Fourth Proportional to 90,400.33, 135,447.40 and 54,753.94

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Solution

The fourth proportional to 90,400.33, 135,447.40 and 54,753.94 is: 82,038.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,400.33 : 135,447.40 = 54,753.94 : x
  2. Step 2: Convert to fraction form
    90,400.33/135,447.40 = 54,753.94/x
  3. Step 3: Cross multiply
    90,400.33x = 135,447.40 × 54,753.94
  4. Step 4: Simplify right side
    90,400.33x = 7,416,278,556.09
  5. Step 5: Solve for x
    x = 7,416,278,556.09/90,400.33
  6. Step 6: Final answer
    x = 82,038.18

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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.