Finding the Fourth Proportional to 68,611.20, 102,863.04 and 27,089.28
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Solution
The fourth proportional to 68,611.20, 102,863.04 and 27,089.28 is: 40,612.69
Step by Step Solution
- Step 1: Write the proportion equation
68,611.20 : 102,863.04 = 27,089.28 : x - Step 2: Convert to fraction form
68,611.20/102,863.04 = 27,089.28/x - Step 3: Cross multiply
68,611.20x = 102,863.04 × 27,089.28 - Step 4: Simplify right side
68,611.20x = 2,786,485,692.21 - Step 5: Solve for x
x = 2,786,485,692.21/68,611.20 - Step 6: Final answer
x = 40,612.69
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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.