Finding the Fourth Proportional to 86,599.25, 129,902.66 and 27,439.28
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Solution
The fourth proportional to 86,599.25, 129,902.66 and 27,439.28 is: 41,160.12
Step by Step Solution
- Step 1: Write the proportion equation
86,599.25 : 129,902.66 = 27,439.28 : x - Step 2: Convert to fraction form
86,599.25/129,902.66 = 27,439.28/x - Step 3: Cross multiply
86,599.25x = 129,902.66 × 27,439.28 - Step 4: Simplify right side
86,599.25x = 3,564,435,323.29 - Step 5: Solve for x
x = 3,564,435,323.29/86,599.25 - Step 6: Final answer
x = 41,160.12
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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.