Home / 54,474.22-81,715.47-21,179.98

Finding the Fourth Proportional to 54,474.22, 81,715.47 and 21,179.98

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Solution

The fourth proportional to 54,474.22, 81,715.47 and 21,179.98 is: 31,771.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,474.22 : 81,715.47 = 21,179.98 : x
  2. Step 2: Convert to fraction form
    54,474.22/81,715.47 = 21,179.98/x
  3. Step 3: Cross multiply
    54,474.22x = 81,715.47 × 21,179.98
  4. Step 4: Simplify right side
    54,474.22x = 1,730,732,020.29
  5. Step 5: Solve for x
    x = 1,730,732,020.29/54,474.22
  6. Step 6: Final answer
    x = 31,771.58

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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.