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Finding the Fourth Proportional to 69,694.59, 104,541.92 and 66,144.81

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Solution

The fourth proportional to 69,694.59, 104,541.92 and 66,144.81 is: 99,217.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,694.59 : 104,541.92 = 66,144.81 : x
  2. Step 2: Convert to fraction form
    69,694.59/104,541.92 = 66,144.81/x
  3. Step 3: Cross multiply
    69,694.59x = 104,541.92 × 66,144.81
  4. Step 4: Simplify right side
    69,694.59x = 6,914,905,104.71
  5. Step 5: Solve for x
    x = 6,914,905,104.71/69,694.59
  6. Step 6: Final answer
    x = 99,217.24

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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.