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Finding the Fourth Proportional to 36,612.60, 54,920.70 and 19,116.60

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Solution

The fourth proportional to 36,612.60, 54,920.70 and 19,116.60 is: 28,675.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,612.60 : 54,920.70 = 19,116.60 : x
  2. Step 2: Convert to fraction form
    36,612.60/54,920.70 = 19,116.60/x
  3. Step 3: Cross multiply
    36,612.60x = 54,920.70 × 19,116.60
  4. Step 4: Simplify right side
    36,612.60x = 1,049,897,053.62
  5. Step 5: Solve for x
    x = 1,049,897,053.62/36,612.60
  6. Step 6: Final answer
    x = 28,675.84

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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.