Finding the Fourth Proportional to 90,814.11, 136,226.28 and 27,636.29
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Solution
The fourth proportional to 90,814.11, 136,226.28 and 27,636.29 is: 41,455.99
Step by Step Solution
- Step 1: Write the proportion equation
90,814.11 : 136,226.28 = 27,636.29 : x - Step 2: Convert to fraction form
90,814.11/136,226.28 = 27,636.29/x - Step 3: Cross multiply
90,814.11x = 136,226.28 × 27,636.29 - Step 4: Simplify right side
90,814.11x = 3,764,788,452.19 - Step 5: Solve for x
x = 3,764,788,452.19/90,814.11 - Step 6: Final answer
x = 41,455.99
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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.