Home / 68,486.26-102,729.40-18,566.36

Finding the Fourth Proportional to 68,486.26, 102,729.40 and 18,566.36

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Solution

The fourth proportional to 68,486.26, 102,729.40 and 18,566.36 is: 27,849.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,486.26 : 102,729.40 = 18,566.36 : x
  2. Step 2: Convert to fraction form
    68,486.26/102,729.40 = 18,566.36/x
  3. Step 3: Cross multiply
    68,486.26x = 102,729.40 × 18,566.36
  4. Step 4: Simplify right side
    68,486.26x = 1,907,311,022.98
  5. Step 5: Solve for x
    x = 1,907,311,022.98/68,486.26
  6. Step 6: Final answer
    x = 27,849.54

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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.