Home / 54,452.72-81,657.93-21,168.38

Finding the Fourth Proportional to 54,452.72, 81,657.93 and 21,168.38

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Solution

The fourth proportional to 54,452.72, 81,657.93 and 21,168.38 is: 31,744.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,452.72 : 81,657.93 = 21,168.38 : x
  2. Step 2: Convert to fraction form
    54,452.72/81,657.93 = 21,168.38/x
  3. Step 3: Cross multiply
    54,452.72x = 81,657.93 × 21,168.38
  4. Step 4: Simplify right side
    54,452.72x = 1,728,566,092.25
  5. Step 5: Solve for x
    x = 1,728,566,092.25/54,452.72
  6. Step 6: Final answer
    x = 31,744.35

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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.