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Finding the Fourth Proportional to 36,103.40, 54,111.90 and 18,564.20

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Solution

The fourth proportional to 36,103.40, 54,111.90 and 18,564.20 is: 27,824.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,103.40 : 54,111.90 = 18,564.20 : x
  2. Step 2: Convert to fraction form
    36,103.40/54,111.90 = 18,564.20/x
  3. Step 3: Cross multiply
    36,103.40x = 54,111.90 × 18,564.20
  4. Step 4: Simplify right side
    36,103.40x = 1,004,544,133.98
  5. Step 5: Solve for x
    x = 1,004,544,133.98/36,103.40
  6. Step 6: Final answer
    x = 27,824.09

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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.