Home / 54,939.32-82,412.46-21,221.42

Finding the Fourth Proportional to 54,939.32, 82,412.46 and 21,221.42

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Solution

The fourth proportional to 54,939.32, 82,412.46 and 21,221.42 is: 31,833.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,939.32 : 82,412.46 = 21,221.42 : x
  2. Step 2: Convert to fraction form
    54,939.32/82,412.46 = 21,221.42/x
  3. Step 3: Cross multiply
    54,939.32x = 82,412.46 × 21,221.42
  4. Step 4: Simplify right side
    54,939.32x = 1,748,909,426.89
  5. Step 5: Solve for x
    x = 1,748,909,426.89/54,939.32
  6. Step 6: Final answer
    x = 31,833.47

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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.