Finding the Fourth Proportional to 76,676.36, 114,861.38 and 60,908.09
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Solution
The fourth proportional to 76,676.36, 114,861.38 and 60,908.09 is: 91,240.47
Step by Step Solution
- Step 1: Write the proportion equation
76,676.36 : 114,861.38 = 60,908.09 : x - Step 2: Convert to fraction form
76,676.36/114,861.38 = 60,908.09/x - Step 3: Cross multiply
76,676.36x = 114,861.38 × 60,908.09 - Step 4: Simplify right side
76,676.36x = 6,995,986,391.72 - Step 5: Solve for x
x = 6,995,986,391.72/76,676.36 - Step 6: Final answer
x = 91,240.47
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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.