Home / 54,451.22-81,655.68-21,166.88

Finding the Fourth Proportional to 54,451.22, 81,655.68 and 21,166.88

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Solution

The fourth proportional to 54,451.22, 81,655.68 and 21,166.88 is: 31,742.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,451.22 : 81,655.68 = 21,166.88 : x
  2. Step 2: Convert to fraction form
    54,451.22/81,655.68 = 21,166.88/x
  3. Step 3: Cross multiply
    54,451.22x = 81,655.68 × 21,166.88
  4. Step 4: Simplify right side
    54,451.22x = 1,728,395,979.88
  5. Step 5: Solve for x
    x = 1,728,395,979.88/54,451.22
  6. Step 6: Final answer
    x = 31,742.10

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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.