Home / 54,462.68-81,673.02-21,178.29

Finding the Fourth Proportional to 54,462.68, 81,673.02 and 21,178.29

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Solution

The fourth proportional to 54,462.68, 81,673.02 and 21,178.29 is: 31,759.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,462.68 : 81,673.02 = 21,178.29 : x
  2. Step 2: Convert to fraction form
    54,462.68/81,673.02 = 21,178.29/x
  3. Step 3: Cross multiply
    54,462.68x = 81,673.02 × 21,178.29
  4. Step 4: Simplify right side
    54,462.68x = 1,729,694,902.74
  5. Step 5: Solve for x
    x = 1,729,694,902.74/54,462.68
  6. Step 6: Final answer
    x = 31,759.27

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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.