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Finding the Fourth Proportional to 36,081.32, 54,122.04 and 13,905.14

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Solution

The fourth proportional to 36,081.32, 54,122.04 and 13,905.14 is: 20,857.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,081.32 : 54,122.04 = 13,905.14 : x
  2. Step 2: Convert to fraction form
    36,081.32/54,122.04 = 13,905.14/x
  3. Step 3: Cross multiply
    36,081.32x = 54,122.04 × 13,905.14
  4. Step 4: Simplify right side
    36,081.32x = 752,574,272.68
  5. Step 5: Solve for x
    x = 752,574,272.68/36,081.32
  6. Step 6: Final answer
    x = 20,857.73

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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.