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Finding the Fourth Proportional to 66,641.88, 99,968.00 and 22,268.79

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Solution

The fourth proportional to 66,641.88, 99,968.00 and 22,268.79 is: 33,404.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,641.88 : 99,968.00 = 22,268.79 : x
  2. Step 2: Convert to fraction form
    66,641.88/99,968.00 = 22,268.79/x
  3. Step 3: Cross multiply
    66,641.88x = 99,968.00 × 22,268.79
  4. Step 4: Simplify right side
    66,641.88x = 2,226,166,287.38
  5. Step 5: Solve for x
    x = 2,226,166,287.38/66,641.88
  6. Step 6: Final answer
    x = 33,404.91

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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.