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Finding the Fourth Proportional to 63,640.89, 87,845.02 and 45,787.79

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Solution

The fourth proportional to 63,640.89, 87,845.02 and 45,787.79 is: 63,201.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,640.89 : 87,845.02 = 45,787.79 : x
  2. Step 2: Convert to fraction form
    63,640.89/87,845.02 = 45,787.79/x
  3. Step 3: Cross multiply
    63,640.89x = 87,845.02 × 45,787.79
  4. Step 4: Simplify right side
    63,640.89x = 4,022,229,433.45
  5. Step 5: Solve for x
    x = 4,022,229,433.45/63,640.89
  6. Step 6: Final answer
    x = 63,201.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.