Finding the Fourth Proportional to 81,809.23, 122,716.59 and 22,639.95
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Solution
The fourth proportional to 81,809.23, 122,716.59 and 22,639.95 is: 33,960.68
Step by Step Solution
- Step 1: Write the proportion equation
81,809.23 : 122,716.59 = 22,639.95 : x - Step 2: Convert to fraction form
81,809.23/122,716.59 = 22,639.95/x - Step 3: Cross multiply
81,809.23x = 122,716.59 × 22,639.95 - Step 4: Simplify right side
81,809.23x = 2,778,297,348.57 - Step 5: Solve for x
x = 2,778,297,348.57/81,809.23 - Step 6: Final answer
x = 33,960.68
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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.