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Finding the Fourth Proportional to 63,511, 95,270.49 and 21,387.64

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Solution

The fourth proportional to 63,511, 95,270.49 and 21,387.64 is: 32,082.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,511 : 95,270.49 = 21,387.64 : x
  2. Step 2: Convert to fraction form
    63,511/95,270.49 = 21,387.64/x
  3. Step 3: Cross multiply
    63,511x = 95,270.49 × 21,387.64
  4. Step 4: Simplify right side
    63,511x = 2,037,610,942.74
  5. Step 5: Solve for x
    x = 2,037,610,942.74/63,511
  6. Step 6: Final answer
    x = 32,082.80

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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.