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Finding the Fourth Proportional to 36,116.60, 54,153.30 and 18,620.60

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Solution

The fourth proportional to 36,116.60, 54,153.30 and 18,620.60 is: 27,919.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,116.60 : 54,153.30 = 18,620.60 : x
  2. Step 2: Convert to fraction form
    36,116.60/54,153.30 = 18,620.60/x
  3. Step 3: Cross multiply
    36,116.60x = 54,153.30 × 18,620.60
  4. Step 4: Simplify right side
    36,116.60x = 1,008,366,937.98
  5. Step 5: Solve for x
    x = 1,008,366,937.98/36,116.60
  6. Step 6: Final answer
    x = 27,919.76

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1.5x scale

Why These Related Problems?

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