Finding the Fourth Proportional to 84,019.84, 126,049.36 and 27,855.84
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Solution
The fourth proportional to 84,019.84, 126,049.36 and 27,855.84 is: 41,790.26
Step by Step Solution
- Step 1: Write the proportion equation
84,019.84 : 126,049.36 = 27,855.84 : x - Step 2: Convert to fraction form
84,019.84/126,049.36 = 27,855.84/x - Step 3: Cross multiply
84,019.84x = 126,049.36 × 27,855.84 - Step 4: Simplify right side
84,019.84x = 3,511,210,804.26 - Step 5: Solve for x
x = 3,511,210,804.26/84,019.84 - Step 6: Final answer
x = 41,790.26
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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.