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Finding the Fourth Proportional to 78,766.29, 118,119.33 and 33,783.48

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Solution

The fourth proportional to 78,766.29, 118,119.33 and 33,783.48 is: 50,662.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,766.29 : 118,119.33 = 33,783.48 : x
  2. Step 2: Convert to fraction form
    78,766.29/118,119.33 = 33,783.48/x
  3. Step 3: Cross multiply
    78,766.29x = 118,119.33 × 33,783.48
  4. Step 4: Simplify right side
    78,766.29x = 3,990,482,022.67
  5. Step 5: Solve for x
    x = 3,990,482,022.67/78,766.29
  6. Step 6: Final answer
    x = 50,662.31

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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.