Finding the Fourth Proportional to 78,202.68, 117,310.92 and 22,043.26
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Solution
The fourth proportional to 78,202.68, 117,310.92 and 22,043.26 is: 33,066.83
Step by Step Solution
- Step 1: Write the proportion equation
78,202.68 : 117,310.92 = 22,043.26 : x - Step 2: Convert to fraction form
78,202.68/117,310.92 = 22,043.26/x - Step 3: Cross multiply
78,202.68x = 117,310.92 × 22,043.26 - Step 4: Simplify right side
78,202.68x = 2,585,915,110.40 - Step 5: Solve for x
x = 2,585,915,110.40/78,202.68 - Step 6: Final answer
x = 33,066.83
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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.