Finding the Fourth Proportional to 88,716.44, 122,429.03 and 48,431.09
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Solution
The fourth proportional to 88,716.44, 122,429.03 and 48,431.09 is: 66,835.09
Step by Step Solution
- Step 1: Write the proportion equation
88,716.44 : 122,429.03 = 48,431.09 : x - Step 2: Convert to fraction form
88,716.44/122,429.03 = 48,431.09/x - Step 3: Cross multiply
88,716.44x = 122,429.03 × 48,431.09 - Step 4: Simplify right side
88,716.44x = 5,929,370,516.24 - Step 5: Solve for x
x = 5,929,370,516.24/88,716.44 - Step 6: Final answer
x = 66,835.09
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.