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Finding the Fourth Proportional to 66,945.80, 100,348.64 and 22,557.22

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Solution

The fourth proportional to 66,945.80, 100,348.64 and 22,557.22 is: 33,812.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,945.80 : 100,348.64 = 22,557.22 : x
  2. Step 2: Convert to fraction form
    66,945.80/100,348.64 = 22,557.22/x
  3. Step 3: Cross multiply
    66,945.80x = 100,348.64 × 22,557.22
  4. Step 4: Simplify right side
    66,945.80x = 2,263,586,349.18
  5. Step 5: Solve for x
    x = 2,263,586,349.18/66,945.80
  6. Step 6: Final answer
    x = 33,812.22

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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.