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Finding the Fourth Proportional to 91,855, 137,764.38 and 25,278.04

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Solution

The fourth proportional to 91,855, 137,764.38 and 25,278.04 is: 37,912.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,855 : 137,764.38 = 25,278.04 : x
  2. Step 2: Convert to fraction form
    91,855/137,764.38 = 25,278.04/x
  3. Step 3: Cross multiply
    91,855x = 137,764.38 × 25,278.04
  4. Step 4: Simplify right side
    91,855x = 3,482,413,508.22
  5. Step 5: Solve for x
    x = 3,482,413,508.22/91,855
  6. Step 6: Final answer
    x = 37,912.07

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.