Finding the Fourth Proportional to 71,103.97, 106,673.50 and 21,183.87
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Solution
The fourth proportional to 71,103.97, 106,673.50 and 21,183.87 is: 31,781.03
Step by Step Solution
- Step 1: Write the proportion equation
71,103.97 : 106,673.50 = 21,183.87 : x - Step 2: Convert to fraction form
71,103.97/106,673.50 = 21,183.87/x - Step 3: Cross multiply
71,103.97x = 106,673.50 × 21,183.87 - Step 4: Simplify right side
71,103.97x = 2,259,757,556.45 - Step 5: Solve for x
x = 2,259,757,556.45/71,103.97 - Step 6: Final answer
x = 31,781.03
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.