Finding the Fourth Proportional to 81,850.68, 122,817.96 and 48,165.66
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Solution
The fourth proportional to 81,850.68, 122,817.96 and 48,165.66 is: 72,273.17
Step by Step Solution
- Step 1: Write the proportion equation
81,850.68 : 122,817.96 = 48,165.66 : x - Step 2: Convert to fraction form
81,850.68/122,817.96 = 48,165.66/x - Step 3: Cross multiply
81,850.68x = 122,817.96 × 48,165.66 - Step 4: Simplify right side
81,850.68x = 5,915,608,103.25 - Step 5: Solve for x
x = 5,915,608,103.25/81,850.68 - Step 6: Final answer
x = 72,273.17
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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.