Finding the Fourth Proportional to 71,486.20, 107,194.60 and 21,556.99
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Solution
The fourth proportional to 71,486.20, 107,194.60 and 21,556.99 is: 32,325.02
Step by Step Solution
- Step 1: Write the proportion equation
71,486.20 : 107,194.60 = 21,556.99 : x - Step 2: Convert to fraction form
71,486.20/107,194.60 = 21,556.99/x - Step 3: Cross multiply
71,486.20x = 107,194.60 × 21,556.99 - Step 4: Simplify right side
71,486.20x = 2,310,792,920.25 - Step 5: Solve for x
x = 2,310,792,920.25/71,486.20 - Step 6: Final answer
x = 32,325.02
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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.