Finding the Fourth Proportional to 79,842.90, 119,775.28 and 27,238.26
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Solution
The fourth proportional to 79,842.90, 119,775.28 and 27,238.26 is: 40,861.12
Step by Step Solution
- Step 1: Write the proportion equation
79,842.90 : 119,775.28 = 27,238.26 : x - Step 2: Convert to fraction form
79,842.90/119,775.28 = 27,238.26/x - Step 3: Cross multiply
79,842.90x = 119,775.28 × 27,238.26 - Step 4: Simplify right side
79,842.90x = 3,262,470,218.21 - Step 5: Solve for x
x = 3,262,470,218.21/79,842.90 - Step 6: Final answer
x = 40,861.12
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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.