Home / 90,682.78-136,019.84-27,500.08

Finding the Fourth Proportional to 90,682.78, 136,019.84 and 27,500.08

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Solution

The fourth proportional to 90,682.78, 136,019.84 and 27,500.08 is: 41,248.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,682.78 : 136,019.84 = 27,500.08 : x
  2. Step 2: Convert to fraction form
    90,682.78/136,019.84 = 27,500.08/x
  3. Step 3: Cross multiply
    90,682.78x = 136,019.84 × 27,500.08
  4. Step 4: Simplify right side
    90,682.78x = 3,740,556,481.59
  5. Step 5: Solve for x
    x = 3,740,556,481.59/90,682.78
  6. Step 6: Final answer
    x = 41,248.81

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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.