Home / 66,905.28-100,365.60-22,516.80

Finding the Fourth Proportional to 66,905.28, 100,365.60 and 22,516.80

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Solution

The fourth proportional to 66,905.28, 100,365.60 and 22,516.80 is: 33,777.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,905.28 : 100,365.60 = 22,516.80 : x
  2. Step 2: Convert to fraction form
    66,905.28/100,365.60 = 22,516.80/x
  3. Step 3: Cross multiply
    66,905.28x = 100,365.60 × 22,516.80
  4. Step 4: Simplify right side
    66,905.28x = 2,259,912,142.08
  5. Step 5: Solve for x
    x = 2,259,912,142.08/66,905.28
  6. Step 6: Final answer
    x = 33,777.78

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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.