Finding the Fourth Proportional to 84,869.14, 117,198.18 and 54,724.98
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Solution
The fourth proportional to 84,869.14, 117,198.18 and 54,724.98 is: 75,571.26
Step by Step Solution
- Step 1: Write the proportion equation
84,869.14 : 117,198.18 = 54,724.98 : x - Step 2: Convert to fraction form
84,869.14/117,198.18 = 54,724.98/x - Step 3: Cross multiply
84,869.14x = 117,198.18 × 54,724.98 - Step 4: Simplify right side
84,869.14x = 6,413,668,056.54 - Step 5: Solve for x
x = 6,413,668,056.54/84,869.14 - Step 6: Final answer
x = 75,571.26
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.