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Finding the Fourth Proportional to 63,163.28, 87,165.40 and 34,868.97

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Solution

The fourth proportional to 63,163.28, 87,165.40 and 34,868.97 is: 48,119.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,163.28 : 87,165.40 = 34,868.97 : x
  2. Step 2: Convert to fraction form
    63,163.28/87,165.40 = 34,868.97/x
  3. Step 3: Cross multiply
    63,163.28x = 87,165.40 × 34,868.97
  4. Step 4: Simplify right side
    63,163.28x = 3,039,367,717.64
  5. Step 5: Solve for x
    x = 3,039,367,717.64/63,163.28
  6. Step 6: Final answer
    x = 48,119.22

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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.