Finding the Fourth Proportional to 68,678.68, 102,887.18 and 39,116.92
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Solution
The fourth proportional to 68,678.68, 102,887.18 and 39,116.92 is: 58,600.86
Step by Step Solution
- Step 1: Write the proportion equation
68,678.68 : 102,887.18 = 39,116.92 : x - Step 2: Convert to fraction form
68,678.68/102,887.18 = 39,116.92/x - Step 3: Cross multiply
68,678.68x = 102,887.18 × 39,116.92 - Step 4: Simplify right side
68,678.68x = 4,024,629,589.09 - Step 5: Solve for x
x = 4,024,629,589.09/68,678.68 - Step 6: Final answer
x = 58,600.86
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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.