Finding the Fourth Proportional to 115,434.99, 173,087.69 and 40,534.29
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Solution
The fourth proportional to 115,434.99, 173,087.69 and 40,534.29 is: 60,778.68
Step by Step Solution
- Step 1: Write the proportion equation
115,434.99 : 173,087.69 = 40,534.29 : x - Step 2: Convert to fraction form
115,434.99/173,087.69 = 40,534.29/x - Step 3: Cross multiply
115,434.99x = 173,087.69 × 40,534.29 - Step 4: Simplify right side
115,434.99x = 7,015,986,419.22 - Step 5: Solve for x
x = 7,015,986,419.22/115,434.99 - Step 6: Final answer
x = 60,778.68
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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.