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Finding the Fourth Proportional to 63,891.95, 95,856.71 and 18,914.45

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Solution

The fourth proportional to 63,891.95, 95,856.71 and 18,914.45 is: 28,377.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,891.95 : 95,856.71 = 18,914.45 : x
  2. Step 2: Convert to fraction form
    63,891.95/95,856.71 = 18,914.45/x
  3. Step 3: Cross multiply
    63,891.95x = 95,856.71 × 18,914.45
  4. Step 4: Simplify right side
    63,891.95x = 1,813,076,374.60
  5. Step 5: Solve for x
    x = 1,813,076,374.60/63,891.95
  6. Step 6: Final answer
    x = 28,377.23

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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.