Finding the Fourth Proportional to 68,723.62, 102,956.09 and 53,887.48
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Solution
The fourth proportional to 68,723.62, 102,956.09 and 53,887.48 is: 80,729.80
Step by Step Solution
- Step 1: Write the proportion equation
68,723.62 : 102,956.09 = 53,887.48 : x - Step 2: Convert to fraction form
68,723.62/102,956.09 = 53,887.48/x - Step 3: Cross multiply
68,723.62x = 102,956.09 × 53,887.48 - Step 4: Simplify right side
68,723.62x = 5,548,043,725.97 - Step 5: Solve for x
x = 5,548,043,725.97/68,723.62 - Step 6: Final answer
x = 80,729.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.