Finding the Fourth Proportional to 86,282.68, 129,424.11 and 27,123.52
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Solution
The fourth proportional to 86,282.68, 129,424.11 and 27,123.52 is: 40,685.31
Step by Step Solution
- Step 1: Write the proportion equation
86,282.68 : 129,424.11 = 27,123.52 : x - Step 2: Convert to fraction form
86,282.68/129,424.11 = 27,123.52/x - Step 3: Cross multiply
86,282.68x = 129,424.11 × 27,123.52 - Step 4: Simplify right side
86,282.68x = 3,510,437,436.07 - Step 5: Solve for x
x = 3,510,437,436.07/86,282.68 - Step 6: Final answer
x = 40,685.31
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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.