Finding the Fourth Proportional to 68,619.20, 102,933.60 and 27,060.80
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Solution
The fourth proportional to 68,619.20, 102,933.60 and 27,060.80 is: 40,593.09
Step by Step Solution
- Step 1: Write the proportion equation
68,619.20 : 102,933.60 = 27,060.80 : x - Step 2: Convert to fraction form
68,619.20/102,933.60 = 27,060.80/x - Step 3: Cross multiply
68,619.20x = 102,933.60 × 27,060.80 - Step 4: Simplify right side
68,619.20x = 2,785,465,562.88 - Step 5: Solve for x
x = 2,785,465,562.88/68,619.20 - Step 6: Final answer
x = 40,593.09
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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.