Finding the Fourth Proportional to 83,708.06, 115,504.88 and 47,891.30
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Solution
The fourth proportional to 83,708.06, 115,504.88 and 47,891.30 is: 66,082.99
Step by Step Solution
- Step 1: Write the proportion equation
83,708.06 : 115,504.88 = 47,891.30 : x - Step 2: Convert to fraction form
83,708.06/115,504.88 = 47,891.30/x - Step 3: Cross multiply
83,708.06x = 115,504.88 × 47,891.30 - Step 4: Simplify right side
83,708.06x = 5,531,678,859.54 - Step 5: Solve for x
x = 5,531,678,859.54/83,708.06 - Step 6: Final answer
x = 66,082.99
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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.