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Finding the Fourth Proportional to 66,784.40, 100,233.30 and 27,369.80

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Solution

The fourth proportional to 66,784.40, 100,233.30 and 27,369.80 is: 41,077.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,784.40 : 100,233.30 = 27,369.80 : x
  2. Step 2: Convert to fraction form
    66,784.40/100,233.30 = 27,369.80/x
  3. Step 3: Cross multiply
    66,784.40x = 100,233.30 × 27,369.80
  4. Step 4: Simplify right side
    66,784.40x = 2,743,365,374.34
  5. Step 5: Solve for x
    x = 2,743,365,374.34/66,784.40
  6. Step 6: Final answer
    x = 41,077.94

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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.