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Finding the Fourth Proportional to 63,864, 95,880.78 and 54,563.76

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Solution

The fourth proportional to 63,864, 95,880.78 and 54,563.76 is: 81,918.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,864 : 95,880.78 = 54,563.76 : x
  2. Step 2: Convert to fraction form
    63,864/95,880.78 = 54,563.76/x
  3. Step 3: Cross multiply
    63,864x = 95,880.78 × 54,563.76
  4. Step 4: Simplify right side
    63,864x = 5,231,615,868.53
  5. Step 5: Solve for x
    x = 5,231,615,868.53/63,864
  6. Step 6: Final answer
    x = 81,918.07

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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.