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Finding the Fourth Proportional to 63,503.20, 87,639.78 and 35,218

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Solution

The fourth proportional to 63,503.20, 87,639.78 and 35,218 is: 48,603.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,503.20 : 87,639.78 = 35,218 : x
  2. Step 2: Convert to fraction form
    63,503.20/87,639.78 = 35,218/x
  3. Step 3: Cross multiply
    63,503.20x = 87,639.78 × 35,218
  4. Step 4: Simplify right side
    63,503.20x = 3,086,497,772.04
  5. Step 5: Solve for x
    x = 3,086,497,772.04/63,503.20
  6. Step 6: Final answer
    x = 48,603.81

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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.