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Finding the Fourth Proportional to 63,867.95, 95,728 and 30,155.35

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Solution

The fourth proportional to 63,867.95, 95,728 and 30,155.35 is: 45,198.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,867.95 : 95,728 = 30,155.35 : x
  2. Step 2: Convert to fraction form
    63,867.95/95,728 = 30,155.35/x
  3. Step 3: Cross multiply
    63,867.95x = 95,728 × 30,155.35
  4. Step 4: Simplify right side
    63,867.95x = 2,886,711,344.80
  5. Step 5: Solve for x
    x = 2,886,711,344.80/63,867.95
  6. Step 6: Final answer
    x = 45,198.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.