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Finding the Fourth Proportional to 63,671, 95,506.50 and 19,895

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Solution

The fourth proportional to 63,671, 95,506.50 and 19,895 is: 29,842.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,671 : 95,506.50 = 19,895 : x
  2. Step 2: Convert to fraction form
    63,671/95,506.50 = 19,895/x
  3. Step 3: Cross multiply
    63,671x = 95,506.50 × 19,895
  4. Step 4: Simplify right side
    63,671x = 1,900,101,817.50
  5. Step 5: Solve for x
    x = 1,900,101,817.50/63,671
  6. Step 6: Final answer
    x = 29,842.50

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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.