Finding the Fourth Proportional to 86,596.05, 129,912.30 and 27,437.70
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Solution
The fourth proportional to 86,596.05, 129,912.30 and 27,437.70 is: 41,162.32
Step by Step Solution
- Step 1: Write the proportion equation
86,596.05 : 129,912.30 = 27,437.70 : x - Step 2: Convert to fraction form
86,596.05/129,912.30 = 27,437.70/x - Step 3: Cross multiply
86,596.05x = 129,912.30 × 27,437.70 - Step 4: Simplify right side
86,596.05x = 3,564,494,713.71 - Step 5: Solve for x
x = 3,564,494,713.71/86,596.05 - Step 6: Final answer
x = 41,162.32
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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.