Finding the Fourth Proportional to 91,446.62, 126,239.47 and 68,794.23
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Solution
The fourth proportional to 91,446.62, 126,239.47 and 68,794.23 is: 94,968.50
Step by Step Solution
- Step 1: Write the proportion equation
91,446.62 : 126,239.47 = 68,794.23 : x - Step 2: Convert to fraction form
91,446.62/126,239.47 = 68,794.23/x - Step 3: Cross multiply
91,446.62x = 126,239.47 × 68,794.23 - Step 4: Simplify right side
91,446.62x = 8,684,547,435.67 - Step 5: Solve for x
x = 8,684,547,435.67/91,446.62 - Step 6: Final answer
x = 94,968.50
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.