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Finding the Fourth Proportional to 69,329.71, 95,676.33 and 39,109.09

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Solution

The fourth proportional to 69,329.71, 95,676.33 and 39,109.09 is: 53,971.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,329.71 : 95,676.33 = 39,109.09 : x
  2. Step 2: Convert to fraction form
    69,329.71/95,676.33 = 39,109.09/x
  3. Step 3: Cross multiply
    69,329.71x = 95,676.33 × 39,109.09
  4. Step 4: Simplify right side
    69,329.71x = 3,741,814,200.84
  5. Step 5: Solve for x
    x = 3,741,814,200.84/69,329.71
  6. Step 6: Final answer
    x = 53,971.29

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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.