Finding the Fourth Proportional to 86,076.94, 129,078.90 and 33,450.42
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Solution
The fourth proportional to 86,076.94, 129,078.90 and 33,450.42 is: 50,161.44
Step by Step Solution
- Step 1: Write the proportion equation
86,076.94 : 129,078.90 = 33,450.42 : x - Step 2: Convert to fraction form
86,076.94/129,078.90 = 33,450.42/x - Step 3: Cross multiply
86,076.94x = 129,078.90 × 33,450.42 - Step 4: Simplify right side
86,076.94x = 4,317,743,418.14 - Step 5: Solve for x
x = 4,317,743,418.14/86,076.94 - Step 6: Final answer
x = 50,161.44
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1.5x scale
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.