Finding the Fourth Proportional to 84,409.68, 126,614.51 and 34,489.73
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Solution
The fourth proportional to 84,409.68, 126,614.51 and 34,489.73 is: 51,734.59
Step by Step Solution
- Step 1: Write the proportion equation
84,409.68 : 126,614.51 = 34,489.73 : x - Step 2: Convert to fraction form
84,409.68/126,614.51 = 34,489.73/x - Step 3: Cross multiply
84,409.68x = 126,614.51 × 34,489.73 - Step 4: Simplify right side
84,409.68x = 4,366,899,717.13 - Step 5: Solve for x
x = 4,366,899,717.13/84,409.68 - Step 6: Final answer
x = 51,734.59
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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.