Home / 54,711.63-82,078.83-23,121.72

Finding the Fourth Proportional to 54,711.63, 82,078.83 and 23,121.72

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Solution

The fourth proportional to 54,711.63, 82,078.83 and 23,121.72 is: 34,687.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,711.63 : 82,078.83 = 23,121.72 : x
  2. Step 2: Convert to fraction form
    54,711.63/82,078.83 = 23,121.72/x
  3. Step 3: Cross multiply
    54,711.63x = 82,078.83 × 23,121.72
  4. Step 4: Simplify right side
    54,711.63x = 1,897,803,725.19
  5. Step 5: Solve for x
    x = 1,897,803,725.19/54,711.63
  6. Step 6: Final answer
    x = 34,687.39

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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.