Finding the Fourth Proportional to 79,638.96, 119,434.14 and 27,036.75
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Solution
The fourth proportional to 79,638.96, 119,434.14 and 27,036.75 is: 40,546.88
Step by Step Solution
- Step 1: Write the proportion equation
79,638.96 : 119,434.14 = 27,036.75 : x - Step 2: Convert to fraction form
79,638.96/119,434.14 = 27,036.75/x - Step 3: Cross multiply
79,638.96x = 119,434.14 × 27,036.75 - Step 4: Simplify right side
79,638.96x = 3,229,110,984.65 - Step 5: Solve for x
x = 3,229,110,984.65/79,638.96 - Step 6: Final answer
x = 40,546.88
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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.