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Finding the Fourth Proportional to 128,584.65, 192,889.65 and 44,333.72

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Solution

The fourth proportional to 128,584.65, 192,889.65 and 44,333.72 is: 66,504.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,584.65 : 192,889.65 = 44,333.72 : x
  2. Step 2: Convert to fraction form
    128,584.65/192,889.65 = 44,333.72/x
  3. Step 3: Cross multiply
    128,584.65x = 192,889.65 × 44,333.72
  4. Step 4: Simplify right side
    128,584.65x = 8,551,515,734.00
  5. Step 5: Solve for x
    x = 8,551,515,734.00/128,584.65
  6. Step 6: Final answer
    x = 66,504.95

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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.