Home / 54,502.94-81,738.62-21,215.59

Finding the Fourth Proportional to 54,502.94, 81,738.62 and 21,215.59

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Solution

The fourth proportional to 54,502.94, 81,738.62 and 21,215.59 is: 31,817.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,502.94 : 81,738.62 = 21,215.59 : x
  2. Step 2: Convert to fraction form
    54,502.94/81,738.62 = 21,215.59/x
  3. Step 3: Cross multiply
    54,502.94x = 81,738.62 × 21,215.59
  4. Step 4: Simplify right side
    54,502.94x = 1,734,132,818.22
  5. Step 5: Solve for x
    x = 1,734,132,818.22/54,502.94
  6. Step 6: Final answer
    x = 31,817.23

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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.