Finding the Fourth Proportional to 85,674.38, 128,523.84 and 26,514.68
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Solution
The fourth proportional to 85,674.38, 128,523.84 and 26,514.68 is: 39,775.82
Step by Step Solution
- Step 1: Write the proportion equation
85,674.38 : 128,523.84 = 26,514.68 : x - Step 2: Convert to fraction form
85,674.38/128,523.84 = 26,514.68/x - Step 3: Cross multiply
85,674.38x = 128,523.84 × 26,514.68 - Step 4: Simplify right side
85,674.38x = 3,407,768,489.97 - Step 5: Solve for x
x = 3,407,768,489.97/85,674.38 - Step 6: Final answer
x = 39,775.82
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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.