Finding the Fourth Proportional to 86,446.64, 129,669.98 and 27,286.92
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Solution
The fourth proportional to 86,446.64, 129,669.98 and 27,286.92 is: 40,930.39
Step by Step Solution
- Step 1: Write the proportion equation
86,446.64 : 129,669.98 = 27,286.92 : x - Step 2: Convert to fraction form
86,446.64/129,669.98 = 27,286.92/x - Step 3: Cross multiply
86,446.64x = 129,669.98 × 27,286.92 - Step 4: Simplify right side
86,446.64x = 3,538,294,370.66 - Step 5: Solve for x
x = 3,538,294,370.66/86,446.64 - Step 6: Final answer
x = 40,930.39
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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.