Home / 54,449.98-81,696.09-21,193.40

Finding the Fourth Proportional to 54,449.98, 81,696.09 and 21,193.40

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Solution

The fourth proportional to 54,449.98, 81,696.09 and 21,193.40 is: 31,798.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,449.98 : 81,696.09 = 21,193.40 : x
  2. Step 2: Convert to fraction form
    54,449.98/81,696.09 = 21,193.40/x
  3. Step 3: Cross multiply
    54,449.98x = 81,696.09 × 21,193.40
  4. Step 4: Simplify right side
    54,449.98x = 1,731,418,197.52
  5. Step 5: Solve for x
    x = 1,731,418,197.52/54,449.98
  6. Step 6: Final answer
    x = 31,798.33

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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.