Finding the Fourth Proportional to 68,626.96, 102,957.09 and 21,879.79
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Solution
The fourth proportional to 68,626.96, 102,957.09 and 21,879.79 is: 32,824.99
Step by Step Solution
- Step 1: Write the proportion equation
68,626.96 : 102,957.09 = 21,879.79 : x - Step 2: Convert to fraction form
68,626.96/102,957.09 = 21,879.79/x - Step 3: Cross multiply
68,626.96x = 102,957.09 × 21,879.79 - Step 4: Simplify right side
68,626.96x = 2,252,679,508.21 - Step 5: Solve for x
x = 2,252,679,508.21/68,626.96 - Step 6: Final answer
x = 32,824.99
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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.