Finding the Fourth Proportional to 91,544.85, 126,289.94 and 55,260.09
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Solution
The fourth proportional to 91,544.85, 126,289.94 and 55,260.09 is: 76,233.60
Step by Step Solution
- Step 1: Write the proportion equation
91,544.85 : 126,289.94 = 55,260.09 : x - Step 2: Convert to fraction form
91,544.85/126,289.94 = 55,260.09/x - Step 3: Cross multiply
91,544.85x = 126,289.94 × 55,260.09 - Step 4: Simplify right side
91,544.85x = 6,978,793,174.19 - Step 5: Solve for x
x = 6,978,793,174.19/91,544.85 - Step 6: Final answer
x = 76,233.60
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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.