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Finding the Fourth Proportional to 128,673.24, 192,972.96 and 44,411.52

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Solution

The fourth proportional to 128,673.24, 192,972.96 and 44,411.52 is: 66,604.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,673.24 : 192,972.96 = 44,411.52 : x
  2. Step 2: Convert to fraction form
    128,673.24/192,972.96 = 44,411.52/x
  3. Step 3: Cross multiply
    128,673.24x = 192,972.96 × 44,411.52
  4. Step 4: Simplify right side
    128,673.24x = 8,570,222,472.50
  5. Step 5: Solve for x
    x = 8,570,222,472.50/128,673.24
  6. Step 6: Final answer
    x = 66,604.54

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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.