Finding the Fourth Proportional to 88,717.51, 122,428.49 and 48,431.56
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Solution
The fourth proportional to 88,717.51, 122,428.49 and 48,431.56 is: 66,834.64
Step by Step Solution
- Step 1: Write the proportion equation
88,717.51 : 122,428.49 = 48,431.56 : x - Step 2: Convert to fraction form
88,717.51/122,428.49 = 48,431.56/x - Step 3: Cross multiply
88,717.51x = 122,428.49 × 48,431.56 - Step 4: Simplify right side
88,717.51x = 5,929,402,759.14 - Step 5: Solve for x
x = 5,929,402,759.14/88,717.51 - Step 6: Final answer
x = 66,834.64
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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.