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Finding the Fourth Proportional to 43,278, 64,861.04 and 22,200.56

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Solution

The fourth proportional to 43,278, 64,861.04 and 22,200.56 is: 33,272.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,278 : 64,861.04 = 22,200.56 : x
  2. Step 2: Convert to fraction form
    43,278/64,861.04 = 22,200.56/x
  3. Step 3: Cross multiply
    43,278x = 64,861.04 × 22,200.56
  4. Step 4: Simplify right side
    43,278x = 1,439,951,410.18
  5. Step 5: Solve for x
    x = 1,439,951,410.18/43,278
  6. Step 6: Final answer
    x = 33,272.13

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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.