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Finding the Fourth Proportional to 63,820.52, 95,671.29 and 21,671.78

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Solution

The fourth proportional to 63,820.52, 95,671.29 and 21,671.78 is: 32,487.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,820.52 : 95,671.29 = 21,671.78 : x
  2. Step 2: Convert to fraction form
    63,820.52/95,671.29 = 21,671.78/x
  3. Step 3: Cross multiply
    63,820.52x = 95,671.29 × 21,671.78
  4. Step 4: Simplify right side
    63,820.52x = 2,073,366,670.84
  5. Step 5: Solve for x
    x = 2,073,366,670.84/63,820.52
  6. Step 6: Final answer
    x = 32,487.46

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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.