Home / 81,860.26-122,790.39-29,266.57

Finding the Fourth Proportional to 81,860.26, 122,790.39 and 29,266.57

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Solution

The fourth proportional to 81,860.26, 122,790.39 and 29,266.57 is: 43,899.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,860.26 : 122,790.39 = 29,266.57 : x
  2. Step 2: Convert to fraction form
    81,860.26/122,790.39 = 29,266.57/x
  3. Step 3: Cross multiply
    81,860.26x = 122,790.39 × 29,266.57
  4. Step 4: Simplify right side
    81,860.26x = 3,593,653,544.26
  5. Step 5: Solve for x
    x = 3,593,653,544.26/81,860.26
  6. Step 6: Final answer
    x = 43,899.86

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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.