Home / 85,131.44-117,482.64-49,324.04

Finding the Fourth Proportional to 85,131.44, 117,482.64 and 49,324.04

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Solution

The fourth proportional to 85,131.44, 117,482.64 and 49,324.04 is: 68,067.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,131.44 : 117,482.64 = 49,324.04 : x
  2. Step 2: Convert to fraction form
    85,131.44/117,482.64 = 49,324.04/x
  3. Step 3: Cross multiply
    85,131.44x = 117,482.64 × 49,324.04
  4. Step 4: Simplify right side
    85,131.44x = 5,794,718,434.67
  5. Step 5: Solve for x
    x = 5,794,718,434.67/85,131.44
  6. Step 6: Final answer
    x = 68,067.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.