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Finding the Fourth Proportional to 66,542.54, 99,815.63 and 22,167.71

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Solution

The fourth proportional to 66,542.54, 99,815.63 and 22,167.71 is: 33,252.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,542.54 : 99,815.63 = 22,167.71 : x
  2. Step 2: Convert to fraction form
    66,542.54/99,815.63 = 22,167.71/x
  3. Step 3: Cross multiply
    66,542.54x = 99,815.63 × 22,167.71
  4. Step 4: Simplify right side
    66,542.54x = 2,212,683,329.39
  5. Step 5: Solve for x
    x = 2,212,683,329.39/66,542.54
  6. Step 6: Final answer
    x = 33,252.16

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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.