Home / 85,144.19-117,502.62-47,418.44

Finding the Fourth Proportional to 85,144.19, 117,502.62 and 47,418.44

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Solution

The fourth proportional to 85,144.19, 117,502.62 and 47,418.44 is: 65,439.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,144.19 : 117,502.62 = 47,418.44 : x
  2. Step 2: Convert to fraction form
    85,144.19/117,502.62 = 47,418.44/x
  3. Step 3: Cross multiply
    85,144.19x = 117,502.62 × 47,418.44
  4. Step 4: Simplify right side
    85,144.19x = 5,571,790,936.31
  5. Step 5: Solve for x
    x = 5,571,790,936.31/85,144.19
  6. Step 6: Final answer
    x = 65,439.47

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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.