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Finding the Fourth Proportional to 69,379.58, 95,720.46 and 45,169.50

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Solution

The fourth proportional to 69,379.58, 95,720.46 and 45,169.50 is: 62,318.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,379.58 : 95,720.46 = 45,169.50 : x
  2. Step 2: Convert to fraction form
    69,379.58/95,720.46 = 45,169.50/x
  3. Step 3: Cross multiply
    69,379.58x = 95,720.46 × 45,169.50
  4. Step 4: Simplify right side
    69,379.58x = 4,323,645,317.97
  5. Step 5: Solve for x
    x = 4,323,645,317.97/69,379.58
  6. Step 6: Final answer
    x = 62,318.70

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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.