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Finding the Fourth Proportional to 63,315.78, 87,366.09 and 36,453.95

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Solution

The fourth proportional to 63,315.78, 87,366.09 and 36,453.95 is: 50,300.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,315.78 : 87,366.09 = 36,453.95 : x
  2. Step 2: Convert to fraction form
    63,315.78/87,366.09 = 36,453.95/x
  3. Step 3: Cross multiply
    63,315.78x = 87,366.09 × 36,453.95
  4. Step 4: Simplify right side
    63,315.78x = 3,184,839,104.05
  5. Step 5: Solve for x
    x = 3,184,839,104.05/63,315.78
  6. Step 6: Final answer
    x = 50,300.88

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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.