Finding the Fourth Proportional to 84,136.08, 126,205.22 and 27,976.19
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Solution
The fourth proportional to 84,136.08, 126,205.22 and 27,976.19 is: 41,964.66
Step by Step Solution
- Step 1: Write the proportion equation
84,136.08 : 126,205.22 = 27,976.19 : x - Step 2: Convert to fraction form
84,136.08/126,205.22 = 27,976.19/x - Step 3: Cross multiply
84,136.08x = 126,205.22 × 27,976.19 - Step 4: Simplify right side
84,136.08x = 3,530,741,599.17 - Step 5: Solve for x
x = 3,530,741,599.17/84,136.08 - Step 6: Final answer
x = 41,964.66
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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.