Finding the Fourth Proportional to 81,804.74, 122,708.01 and 22,640.92
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Solution
The fourth proportional to 81,804.74, 122,708.01 and 22,640.92 is: 33,961.63
Step by Step Solution
- Step 1: Write the proportion equation
81,804.74 : 122,708.01 = 22,640.92 : x - Step 2: Convert to fraction form
81,804.74/122,708.01 = 22,640.92/x - Step 3: Cross multiply
81,804.74x = 122,708.01 × 22,640.92 - Step 4: Simplify right side
81,804.74x = 2,778,222,015.90 - Step 5: Solve for x
x = 2,778,222,015.90/81,804.74 - Step 6: Final answer
x = 33,961.63
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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.