Home / 54,514.30-81,710.70-21,223.30

Finding the Fourth Proportional to 54,514.30, 81,710.70 and 21,223.30

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Solution

The fourth proportional to 54,514.30, 81,710.70 and 21,223.30 is: 31,811.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,514.30 : 81,710.70 = 21,223.30 : x
  2. Step 2: Convert to fraction form
    54,514.30/81,710.70 = 21,223.30/x
  3. Step 3: Cross multiply
    54,514.30x = 81,710.70 × 21,223.30
  4. Step 4: Simplify right side
    54,514.30x = 1,734,170,699.31
  5. Step 5: Solve for x
    x = 1,734,170,699.31/54,514.30
  6. Step 6: Final answer
    x = 31,811.30

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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.