Finding the Fourth Proportional to 71,706.15, 107,511.84 and 27,305.19
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Solution
The fourth proportional to 71,706.15, 107,511.84 and 27,305.19 is: 40,939.74
Step by Step Solution
- Step 1: Write the proportion equation
71,706.15 : 107,511.84 = 27,305.19 : x - Step 2: Convert to fraction form
71,706.15/107,511.84 = 27,305.19/x - Step 3: Cross multiply
71,706.15x = 107,511.84 × 27,305.19 - Step 4: Simplify right side
71,706.15x = 2,935,631,218.45 - Step 5: Solve for x
x = 2,935,631,218.45/71,706.15 - Step 6: Final answer
x = 40,939.74
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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.