Finding the Fourth Proportional to 87,345.84, 120,536.66 and 49,620.09
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Solution
The fourth proportional to 87,345.84, 120,536.66 and 49,620.09 is: 68,475.38
Step by Step Solution
- Step 1: Write the proportion equation
87,345.84 : 120,536.66 = 49,620.09 : x - Step 2: Convert to fraction form
87,345.84/120,536.66 = 49,620.09/x - Step 3: Cross multiply
87,345.84x = 120,536.66 × 49,620.09 - Step 4: Simplify right side
87,345.84x = 5,981,039,669.40 - Step 5: Solve for x
x = 5,981,039,669.40/87,345.84 - Step 6: Final answer
x = 68,475.38
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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.