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Finding the Fourth Proportional to 63,329.76, 87,399.36 and 36,479.36

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Solution

The fourth proportional to 63,329.76, 87,399.36 and 36,479.36 is: 50,343.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,329.76 : 87,399.36 = 36,479.36 : x
  2. Step 2: Convert to fraction form
    63,329.76/87,399.36 = 36,479.36/x
  3. Step 3: Cross multiply
    63,329.76x = 87,399.36 × 36,479.36
  4. Step 4: Simplify right side
    63,329.76x = 3,188,272,717.21
  5. Step 5: Solve for x
    x = 3,188,272,717.21/63,329.76
  6. Step 6: Final answer
    x = 50,343.99

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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.