Finding the Fourth Proportional to 81,550.92, 122,378.36 and 37,182.09
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Solution
The fourth proportional to 81,550.92, 122,378.36 and 37,182.09 is: 55,796.83
Step by Step Solution
- Step 1: Write the proportion equation
81,550.92 : 122,378.36 = 37,182.09 : x - Step 2: Convert to fraction form
81,550.92/122,378.36 = 37,182.09/x - Step 3: Cross multiply
81,550.92x = 122,378.36 × 37,182.09 - Step 4: Simplify right side
81,550.92x = 4,550,283,009.66 - Step 5: Solve for x
x = 4,550,283,009.66/81,550.92 - Step 6: Final answer
x = 55,796.83
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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.