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Finding the Fourth Proportional to 69,573.96, 104,376.86 and 30,137.64

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Solution

The fourth proportional to 69,573.96, 104,376.86 and 30,137.64 is: 45,213.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,573.96 : 104,376.86 = 30,137.64 : x
  2. Step 2: Convert to fraction form
    69,573.96/104,376.86 = 30,137.64/x
  3. Step 3: Cross multiply
    69,573.96x = 104,376.86 × 30,137.64
  4. Step 4: Simplify right side
    69,573.96x = 3,145,672,231.01
  5. Step 5: Solve for x
    x = 3,145,672,231.01/69,573.96
  6. Step 6: Final answer
    x = 45,213.36

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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.