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Finding the Fourth Proportional to 69,502.38, 95,914.75 and 39,285.89

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Solution

The fourth proportional to 69,502.38, 95,914.75 and 39,285.89 is: 54,215.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,502.38 : 95,914.75 = 39,285.89 : x
  2. Step 2: Convert to fraction form
    69,502.38/95,914.75 = 39,285.89/x
  3. Step 3: Cross multiply
    69,502.38x = 95,914.75 × 39,285.89
  4. Step 4: Simplify right side
    69,502.38x = 3,768,096,317.88
  5. Step 5: Solve for x
    x = 3,768,096,317.88/69,502.38
  6. Step 6: Final answer
    x = 54,215.36

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1.5x scale

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.