Finding the Fourth Proportional to 91,472.96, 126,236.16 and 53,229.44
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Solution
The fourth proportional to 91,472.96, 126,236.16 and 53,229.44 is: 73,458.65
Step by Step Solution
- Step 1: Write the proportion equation
91,472.96 : 126,236.16 = 53,229.44 : x - Step 2: Convert to fraction form
91,472.96/126,236.16 = 53,229.44/x - Step 3: Cross multiply
91,472.96x = 126,236.16 × 53,229.44 - Step 4: Simplify right side
91,472.96x = 6,719,480,104.55 - Step 5: Solve for x
x = 6,719,480,104.55/91,472.96 - Step 6: Final answer
x = 73,458.65
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Double scale
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Similar ratio
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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.