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Finding the Fourth Proportional to 64,481.70, 88,838.37 and 49,895.73

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Solution

The fourth proportional to 64,481.70, 88,838.37 and 49,895.73 is: 68,742.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,481.70 : 88,838.37 = 49,895.73 : x
  2. Step 2: Convert to fraction form
    64,481.70/88,838.37 = 49,895.73/x
  3. Step 3: Cross multiply
    64,481.70x = 88,838.37 × 49,895.73
  4. Step 4: Simplify right side
    64,481.70x = 4,432,655,776.88
  5. Step 5: Solve for x
    x = 4,432,655,776.88/64,481.70
  6. Step 6: Final answer
    x = 68,742.85

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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.