Finding the Fourth Proportional to 68,431.63, 102,650.33 and 33,400.75
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Solution
The fourth proportional to 68,431.63, 102,650.33 and 33,400.75 is: 50,102.53
Step by Step Solution
- Step 1: Write the proportion equation
68,431.63 : 102,650.33 = 33,400.75 : x - Step 2: Convert to fraction form
68,431.63/102,650.33 = 33,400.75/x - Step 3: Cross multiply
68,431.63x = 102,650.33 × 33,400.75 - Step 4: Simplify right side
68,431.63x = 3,428,597,842.74 - Step 5: Solve for x
x = 3,428,597,842.74/68,431.63 - Step 6: Final answer
x = 50,102.53
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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.