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Finding the Fourth Proportional to 63,396, 87,509.52 and 36,900

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Solution

The fourth proportional to 63,396, 87,509.52 and 36,900 is: 50,935.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,396 : 87,509.52 = 36,900 : x
  2. Step 2: Convert to fraction form
    63,396/87,509.52 = 36,900/x
  3. Step 3: Cross multiply
    63,396x = 87,509.52 × 36,900
  4. Step 4: Simplify right side
    63,396x = 3,229,101,288
  5. Step 5: Solve for x
    x = 3,229,101,288/63,396
  6. Step 6: Final answer
    x = 50,935.41

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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.