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Finding the Fourth Proportional to 66,685.24, 100,098.36 and 65,179.31

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Solution

The fourth proportional to 66,685.24, 100,098.36 and 65,179.31 is: 97,837.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,685.24 : 100,098.36 = 65,179.31 : x
  2. Step 2: Convert to fraction form
    66,685.24/100,098.36 = 65,179.31/x
  3. Step 3: Cross multiply
    66,685.24x = 100,098.36 × 65,179.31
  4. Step 4: Simplify right side
    66,685.24x = 6,524,342,287.18
  5. Step 5: Solve for x
    x = 6,524,342,287.18/66,685.24
  6. Step 6: Final answer
    x = 97,837.88

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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.