Finding the Fourth Proportional to 81,589.60, 122,381.84 and 22,424.76
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Solution
The fourth proportional to 81,589.60, 122,381.84 and 22,424.76 is: 33,636.43
Step by Step Solution
- Step 1: Write the proportion equation
81,589.60 : 122,381.84 = 22,424.76 : x - Step 2: Convert to fraction form
81,589.60/122,381.84 = 22,424.76/x - Step 3: Cross multiply
81,589.60x = 122,381.84 × 22,424.76 - Step 4: Simplify right side
81,589.60x = 2,744,383,278.23 - Step 5: Solve for x
x = 2,744,383,278.23/81,589.60 - Step 6: Final answer
x = 33,636.43
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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.