Finding the Fourth Proportional to 84,503.10, 126,790.89 and 40,161.18
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Solution
The fourth proportional to 84,503.10, 126,790.89 and 40,161.18 is: 60,258.99
Step by Step Solution
- Step 1: Write the proportion equation
84,503.10 : 126,790.89 = 40,161.18 : x - Step 2: Convert to fraction form
84,503.10/126,790.89 = 40,161.18/x - Step 3: Cross multiply
84,503.10x = 126,790.89 × 40,161.18 - Step 4: Simplify right side
84,503.10x = 5,092,071,755.65 - Step 5: Solve for x
x = 5,092,071,755.65/84,503.10 - Step 6: Final answer
x = 60,258.99
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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.