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Finding the Fourth Proportional to 69,499.76, 95,914.55 and 39,285.29

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Solution

The fourth proportional to 69,499.76, 95,914.55 and 39,285.29 is: 54,216.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,499.76 : 95,914.55 = 39,285.29 : x
  2. Step 2: Convert to fraction form
    69,499.76/95,914.55 = 39,285.29/x
  3. Step 3: Cross multiply
    69,499.76x = 95,914.55 × 39,285.29
  4. Step 4: Simplify right side
    69,499.76x = 3,768,031,249.97
  5. Step 5: Solve for x
    x = 3,768,031,249.97/69,499.76
  6. Step 6: Final answer
    x = 54,216.47

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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.