Home / 54,472.89-81,714.65-21,195.66

Finding the Fourth Proportional to 54,472.89, 81,714.65 and 21,195.66

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Solution

The fourth proportional to 54,472.89, 81,714.65 and 21,195.66 is: 31,795.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,472.89 : 81,714.65 = 21,195.66 : x
  2. Step 2: Convert to fraction form
    54,472.89/81,714.65 = 21,195.66/x
  3. Step 3: Cross multiply
    54,472.89x = 81,714.65 × 21,195.66
  4. Step 4: Simplify right side
    54,472.89x = 1,731,995,832.44
  5. Step 5: Solve for x
    x = 1,731,995,832.44/54,472.89
  6. Step 6: Final answer
    x = 31,795.56

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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.