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Finding the Fourth Proportional to 69,549.48, 95,976.99 and 39,333.78

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Solution

The fourth proportional to 69,549.48, 95,976.99 and 39,333.78 is: 54,279.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,549.48 : 95,976.99 = 39,333.78 : x
  2. Step 2: Convert to fraction form
    69,549.48/95,976.99 = 39,333.78/x
  3. Step 3: Cross multiply
    69,549.48x = 95,976.99 × 39,333.78
  4. Step 4: Simplify right side
    69,549.48x = 3,775,137,809.72
  5. Step 5: Solve for x
    x = 3,775,137,809.72/69,549.48
  6. Step 6: Final answer
    x = 54,279.89

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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.