Home / 54,557.43-81,818.73-21,269.40

Finding the Fourth Proportional to 54,557.43, 81,818.73 and 21,269.40

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Solution

The fourth proportional to 54,557.43, 81,818.73 and 21,269.40 is: 31,897.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,557.43 : 81,818.73 = 21,269.40 : x
  2. Step 2: Convert to fraction form
    54,557.43/81,818.73 = 21,269.40/x
  3. Step 3: Cross multiply
    54,557.43x = 81,818.73 × 21,269.40
  4. Step 4: Simplify right side
    54,557.43x = 1,740,235,295.86
  5. Step 5: Solve for x
    x = 1,740,235,295.86/54,557.43
  6. Step 6: Final answer
    x = 31,897.31

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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.