Finding the Fourth Proportional to 81,597.24, 122,361.30 and 29,019.96
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Solution
The fourth proportional to 81,597.24, 122,361.30 and 29,019.96 is: 43,517.65
Step by Step Solution
- Step 1: Write the proportion equation
81,597.24 : 122,361.30 = 29,019.96 : x - Step 2: Convert to fraction form
81,597.24/122,361.30 = 29,019.96/x - Step 3: Cross multiply
81,597.24x = 122,361.30 × 29,019.96 - Step 4: Simplify right side
81,597.24x = 3,550,920,031.55 - Step 5: Solve for x
x = 3,550,920,031.55/81,597.24 - Step 6: Final answer
x = 43,517.65
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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.