Home / 54,743.76-82,115.64-19,664.28

Finding the Fourth Proportional to 54,743.76, 82,115.64 and 19,664.28

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Solution

The fourth proportional to 54,743.76, 82,115.64 and 19,664.28 is: 29,496.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,743.76 : 82,115.64 = 19,664.28 : x
  2. Step 2: Convert to fraction form
    54,743.76/82,115.64 = 19,664.28/x
  3. Step 3: Cross multiply
    54,743.76x = 82,115.64 × 19,664.28
  4. Step 4: Simplify right side
    54,743.76x = 1,614,744,937.34
  5. Step 5: Solve for x
    x = 1,614,744,937.34/54,743.76
  6. Step 6: Final answer
    x = 29,496.42

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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.