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Finding the Fourth Proportional to 63,581.28, 87,743.52 and 35,286

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Solution

The fourth proportional to 63,581.28, 87,743.52 and 35,286 is: 48,695.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,581.28 : 87,743.52 = 35,286 : x
  2. Step 2: Convert to fraction form
    63,581.28/87,743.52 = 35,286/x
  3. Step 3: Cross multiply
    63,581.28x = 87,743.52 × 35,286
  4. Step 4: Simplify right side
    63,581.28x = 3,096,117,846.72
  5. Step 5: Solve for x
    x = 3,096,117,846.72/63,581.28
  6. Step 6: Final answer
    x = 48,695.43

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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.