Finding the Fourth Proportional to 85,198.05, 117,570.69 and 53,384.49
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Solution
The fourth proportional to 85,198.05, 117,570.69 and 53,384.49 is: 73,668.96
Step by Step Solution
- Step 1: Write the proportion equation
85,198.05 : 117,570.69 = 53,384.49 : x - Step 2: Convert to fraction form
85,198.05/117,570.69 = 53,384.49/x - Step 3: Cross multiply
85,198.05x = 117,570.69 × 53,384.49 - Step 4: Simplify right side
85,198.05x = 6,276,451,324.60 - Step 5: Solve for x
x = 6,276,451,324.60/85,198.05 - Step 6: Final answer
x = 73,668.96
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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.