Finding the Fourth Proportional to 84,124.36, 126,242.66 and 43,635.19
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Solution
The fourth proportional to 84,124.36, 126,242.66 and 43,635.19 is: 65,481.89
Step by Step Solution
- Step 1: Write the proportion equation
84,124.36 : 126,242.66 = 43,635.19 : x - Step 2: Convert to fraction form
84,124.36/126,242.66 = 43,635.19/x - Step 3: Cross multiply
84,124.36x = 126,242.66 × 43,635.19 - Step 4: Simplify right side
84,124.36x = 5,508,622,001.05 - Step 5: Solve for x
x = 5,508,622,001.05/84,124.36 - Step 6: Final answer
x = 65,481.89
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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.