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Finding the Fourth Proportional to 63,165, 87,166.32 and 34,483.68

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Solution

The fourth proportional to 63,165, 87,166.32 and 34,483.68 is: 47,586.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,165 : 87,166.32 = 34,483.68 : x
  2. Step 2: Convert to fraction form
    63,165/87,166.32 = 34,483.68/x
  3. Step 3: Cross multiply
    63,165x = 87,166.32 × 34,483.68
  4. Step 4: Simplify right side
    63,165x = 3,005,815,485.66
  5. Step 5: Solve for x
    x = 3,005,815,485.66/63,165
  6. Step 6: Final answer
    x = 47,586.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.