Home / 90,843.85-136,265.82-40,865.56

Finding the Fourth Proportional to 90,843.85, 136,265.82 and 40,865.56

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Solution

The fourth proportional to 90,843.85, 136,265.82 and 40,865.56 is: 61,298.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,843.85 : 136,265.82 = 40,865.56 : x
  2. Step 2: Convert to fraction form
    90,843.85/136,265.82 = 40,865.56/x
  3. Step 3: Cross multiply
    90,843.85x = 136,265.82 × 40,865.56
  4. Step 4: Simplify right side
    90,843.85x = 5,568,579,043.16
  5. Step 5: Solve for x
    x = 5,568,579,043.16/90,843.85
  6. Step 6: Final answer
    x = 61,298.36

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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.