Finding the Fourth Proportional to 68,715.84, 102,955.42 and 53,717.12
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Solution
The fourth proportional to 68,715.84, 102,955.42 and 53,717.12 is: 80,483.16
Step by Step Solution
- Step 1: Write the proportion equation
68,715.84 : 102,955.42 = 53,717.12 : x - Step 2: Convert to fraction form
68,715.84/102,955.42 = 53,717.12/x - Step 3: Cross multiply
68,715.84x = 102,955.42 × 53,717.12 - Step 4: Simplify right side
68,715.84x = 5,530,468,589.24 - Step 5: Solve for x
x = 5,530,468,589.24/68,715.84 - Step 6: Final answer
x = 80,483.16
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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.