Finding the Fourth Proportional to 99,680.36, 149,545.72 and 33,120.84
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Solution
The fourth proportional to 99,680.36, 149,545.72 and 33,120.84 is: 49,689.63
Step by Step Solution
- Step 1: Write the proportion equation
99,680.36 : 149,545.72 = 33,120.84 : x - Step 2: Convert to fraction form
99,680.36/149,545.72 = 33,120.84/x - Step 3: Cross multiply
99,680.36x = 149,545.72 × 33,120.84 - Step 4: Simplify right side
99,680.36x = 4,953,079,864.80 - Step 5: Solve for x
x = 4,953,079,864.80/99,680.36 - Step 6: Final answer
x = 49,689.63
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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.