Finding the Fourth Proportional to 86,176.09, 129,262.92 and 27,012.07
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Solution
The fourth proportional to 86,176.09, 129,262.92 and 27,012.07 is: 40,517.72
Step by Step Solution
- Step 1: Write the proportion equation
86,176.09 : 129,262.92 = 27,012.07 : x - Step 2: Convert to fraction form
86,176.09/129,262.92 = 27,012.07/x - Step 3: Cross multiply
86,176.09x = 129,262.92 × 27,012.07 - Step 4: Simplify right side
86,176.09x = 3,491,659,043.44 - Step 5: Solve for x
x = 3,491,659,043.44/86,176.09 - Step 6: Final answer
x = 40,517.72
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1.5x scale
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.