Home / 54,704.30-81,996.30-21,418.16

Finding the Fourth Proportional to 54,704.30, 81,996.30 and 21,418.16

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Solution

The fourth proportional to 54,704.30, 81,996.30 and 21,418.16 is: 32,103.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,704.30 : 81,996.30 = 21,418.16 : x
  2. Step 2: Convert to fraction form
    54,704.30/81,996.30 = 21,418.16/x
  3. Step 3: Cross multiply
    54,704.30x = 81,996.30 × 21,418.16
  4. Step 4: Simplify right side
    54,704.30x = 1,756,209,462.83
  5. Step 5: Solve for x
    x = 1,756,209,462.83/54,704.30
  6. Step 6: Final answer
    x = 32,103.69

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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.