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Finding the Fourth Proportional to 66,576.60, 99,908.10 and 38,496.60

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Solution

The fourth proportional to 66,576.60, 99,908.10 and 38,496.60 is: 57,769.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,576.60 : 99,908.10 = 38,496.60 : x
  2. Step 2: Convert to fraction form
    66,576.60/99,908.10 = 38,496.60/x
  3. Step 3: Cross multiply
    66,576.60x = 99,908.10 × 38,496.60
  4. Step 4: Simplify right side
    66,576.60x = 3,846,122,162.46
  5. Step 5: Solve for x
    x = 3,846,122,162.46/66,576.60
  6. Step 6: Final answer
    x = 57,769.88

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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.