Finding the Fourth Proportional to 86,136.77, 129,231.35 and 44,046.40
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Solution
The fourth proportional to 86,136.77, 129,231.35 and 44,046.40 is: 66,082.99
Step by Step Solution
- Step 1: Write the proportion equation
86,136.77 : 129,231.35 = 44,046.40 : x - Step 2: Convert to fraction form
86,136.77/129,231.35 = 44,046.40/x - Step 3: Cross multiply
86,136.77x = 129,231.35 × 44,046.40 - Step 4: Simplify right side
86,136.77x = 5,692,175,734.64 - Step 5: Solve for x
x = 5,692,175,734.64/86,136.77 - Step 6: Final answer
x = 66,082.99
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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.