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Finding the Fourth Proportional to 63,511.40, 87,639.41 and 36,662.56

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Solution

The fourth proportional to 63,511.40, 87,639.41 and 36,662.56 is: 50,590.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,511.40 : 87,639.41 = 36,662.56 : x
  2. Step 2: Convert to fraction form
    63,511.40/87,639.41 = 36,662.56/x
  3. Step 3: Cross multiply
    63,511.40x = 87,639.41 × 36,662.56
  4. Step 4: Simplify right side
    63,511.40x = 3,213,085,127.49
  5. Step 5: Solve for x
    x = 3,213,085,127.49/63,511.40
  6. Step 6: Final answer
    x = 50,590.68

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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.