Finding the Fourth Proportional to 86,197.05, 129,295.58 and 41,910.30
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Solution
The fourth proportional to 86,197.05, 129,295.58 and 41,910.30 is: 62,865.45
Step by Step Solution
- Step 1: Write the proportion equation
86,197.05 : 129,295.58 = 41,910.30 : x - Step 2: Convert to fraction form
86,197.05/129,295.58 = 41,910.30/x - Step 3: Cross multiply
86,197.05x = 129,295.58 × 41,910.30 - Step 4: Simplify right side
86,197.05x = 5,418,816,336.92 - Step 5: Solve for x
x = 5,418,816,336.92/86,197.05 - Step 6: Final answer
x = 62,865.45
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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.