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Finding the Fourth Proportional to 63,346.74, 87,318 and 49,896.69

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Solution

The fourth proportional to 63,346.74, 87,318 and 49,896.69 is: 68,778.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,346.74 : 87,318 = 49,896.69 : x
  2. Step 2: Convert to fraction form
    63,346.74/87,318 = 49,896.69/x
  3. Step 3: Cross multiply
    63,346.74x = 87,318 × 49,896.69
  4. Step 4: Simplify right side
    63,346.74x = 4,356,879,177.42
  5. Step 5: Solve for x
    x = 4,356,879,177.42/63,346.74
  6. Step 6: Final answer
    x = 68,778.27

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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.