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Finding the Fourth Proportional to 80,097.54, 120,687 and 66,363.18

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Solution

The fourth proportional to 80,097.54, 120,687 and 66,363.18 is: 99,992.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,097.54 : 120,687 = 66,363.18 : x
  2. Step 2: Convert to fraction form
    80,097.54/120,687 = 66,363.18/x
  3. Step 3: Cross multiply
    80,097.54x = 120,687 × 66,363.18
  4. Step 4: Simplify right side
    80,097.54x = 8,009,173,104.66
  5. Step 5: Solve for x
    x = 8,009,173,104.66/80,097.54
  6. Step 6: Final answer
    x = 99,992.75

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These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.