Finding the Fourth Proportional to 86,920.21, 119,939.97 and 48,674.44
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Solution
The fourth proportional to 86,920.21, 119,939.97 and 48,674.44 is: 67,165.17
Step by Step Solution
- Step 1: Write the proportion equation
86,920.21 : 119,939.97 = 48,674.44 : x - Step 2: Convert to fraction form
86,920.21/119,939.97 = 48,674.44/x - Step 3: Cross multiply
86,920.21x = 119,939.97 × 48,674.44 - Step 4: Simplify right side
86,920.21x = 5,838,010,873.37 - Step 5: Solve for x
x = 5,838,010,873.37/86,920.21 - Step 6: Final answer
x = 67,165.17
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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.