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Finding the Fourth Proportional to 63,984, 95,983.92 and 21,868.32

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Solution

The fourth proportional to 63,984, 95,983.92 and 21,868.32 is: 32,805.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,984 : 95,983.92 = 21,868.32 : x
  2. Step 2: Convert to fraction form
    63,984/95,983.92 = 21,868.32/x
  3. Step 3: Cross multiply
    63,984x = 95,983.92 × 21,868.32
  4. Step 4: Simplify right side
    63,984x = 2,099,007,077.41
  5. Step 5: Solve for x
    x = 2,099,007,077.41/63,984
  6. Step 6: Final answer
    x = 32,805.19

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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.