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Finding the Fourth Proportional to 69,887.52, 104,847.84 and 30,451.68

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Solution

The fourth proportional to 69,887.52, 104,847.84 and 30,451.68 is: 45,684.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,887.52 : 104,847.84 = 30,451.68 : x
  2. Step 2: Convert to fraction form
    69,887.52/104,847.84 = 30,451.68/x
  3. Step 3: Cross multiply
    69,887.52x = 104,847.84 × 30,451.68
  4. Step 4: Simplify right side
    69,887.52x = 3,192,792,872.37
  5. Step 5: Solve for x
    x = 3,192,792,872.37/69,887.52
  6. Step 6: Final answer
    x = 45,684.74

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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.