Finding the Fourth Proportional to 71,431.07, 107,181.63 and 50,505.53
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Solution
The fourth proportional to 71,431.07, 107,181.63 and 50,505.53 is: 75,783.06
Step by Step Solution
- Step 1: Write the proportion equation
71,431.07 : 107,181.63 = 50,505.53 : x - Step 2: Convert to fraction form
71,431.07/107,181.63 = 50,505.53/x - Step 3: Cross multiply
71,431.07x = 107,181.63 × 50,505.53 - Step 4: Simplify right side
71,431.07x = 5,413,264,493.51 - Step 5: Solve for x
x = 5,413,264,493.51/71,431.07 - Step 6: Final answer
x = 75,783.06
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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.