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Finding the Fourth Proportional to 91,860.26, 126,757.37 and 51,578.42

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Solution

The fourth proportional to 91,860.26, 126,757.37 and 51,578.42 is: 71,172.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,860.26 : 126,757.37 = 51,578.42 : x
  2. Step 2: Convert to fraction form
    91,860.26/126,757.37 = 51,578.42/x
  3. Step 3: Cross multiply
    91,860.26x = 126,757.37 × 51,578.42
  4. Step 4: Simplify right side
    91,860.26x = 6,537,944,363.11
  5. Step 5: Solve for x
    x = 6,537,944,363.11/91,860.26
  6. Step 6: Final answer
    x = 71,172.72

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