Finding the Fourth Proportional to 80,968.92, 121,467.21 and 27,657.96
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Solution
The fourth proportional to 80,968.92, 121,467.21 and 27,657.96 is: 41,491.66
Step by Step Solution
- Step 1: Write the proportion equation
80,968.92 : 121,467.21 = 27,657.96 : x - Step 2: Convert to fraction form
80,968.92/121,467.21 = 27,657.96/x - Step 3: Cross multiply
80,968.92x = 121,467.21 × 27,657.96 - Step 4: Simplify right side
80,968.92x = 3,359,535,235.49 - Step 5: Solve for x
x = 3,359,535,235.49/80,968.92 - Step 6: Final answer
x = 41,491.66
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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.