Home / 68,540.10-94,585.59-39,866.64

Finding the Fourth Proportional to 68,540.10, 94,585.59 and 39,866.64

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Solution

The fourth proportional to 68,540.10, 94,585.59 and 39,866.64 is: 55,016.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,540.10 : 94,585.59 = 39,866.64 : x
  2. Step 2: Convert to fraction form
    68,540.10/94,585.59 = 39,866.64/x
  3. Step 3: Cross multiply
    68,540.10x = 94,585.59 × 39,866.64
  4. Step 4: Simplify right side
    68,540.10x = 3,770,809,665.72
  5. Step 5: Solve for x
    x = 3,770,809,665.72/68,540.10
  6. Step 6: Final answer
    x = 55,016.11

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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.