Finding the Fourth Proportional to 86,715.14, 119,664.38 and 48,474.75
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Solution
The fourth proportional to 86,715.14, 119,664.38 and 48,474.75 is: 66,893.75
Step by Step Solution
- Step 1: Write the proportion equation
86,715.14 : 119,664.38 = 48,474.75 : x - Step 2: Convert to fraction form
86,715.14/119,664.38 = 48,474.75/x - Step 3: Cross multiply
86,715.14x = 119,664.38 × 48,474.75 - Step 4: Simplify right side
86,715.14x = 5,800,700,662.03 - Step 5: Solve for x
x = 5,800,700,662.03/86,715.14 - Step 6: Final answer
x = 66,893.75
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.