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Finding the Fourth Proportional to 36,216, 54,340.48 and 21,454.08

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Solution

The fourth proportional to 36,216, 54,340.48 and 21,454.08 is: 32,190.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,216 : 54,340.48 = 21,454.08 : x
  2. Step 2: Convert to fraction form
    36,216/54,340.48 = 21,454.08/x
  3. Step 3: Cross multiply
    36,216x = 54,340.48 × 21,454.08
  4. Step 4: Simplify right side
    36,216x = 1,165,825,005.16
  5. Step 5: Solve for x
    x = 1,165,825,005.16/36,216
  6. Step 6: Final answer
    x = 32,190.88

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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.