Finding the Fourth Proportional to 68,369.97, 102,550.09 and 18,452.91
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Solution
The fourth proportional to 68,369.97, 102,550.09 and 18,452.91 is: 27,678.05
Step by Step Solution
- Step 1: Write the proportion equation
68,369.97 : 102,550.09 = 18,452.91 : x - Step 2: Convert to fraction form
68,369.97/102,550.09 = 18,452.91/x - Step 3: Cross multiply
68,369.97x = 102,550.09 × 18,452.91 - Step 4: Simplify right side
68,369.97x = 1,892,346,976.25 - Step 5: Solve for x
x = 1,892,346,976.25/68,369.97 - Step 6: Final answer
x = 27,678.05
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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.