Finding the Fourth Proportional to 88,137.62, 121,629.99 and 47,851.35
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Solution
The fourth proportional to 88,137.62, 121,629.99 and 47,851.35 is: 66,034.90
Step by Step Solution
- Step 1: Write the proportion equation
88,137.62 : 121,629.99 = 47,851.35 : x - Step 2: Convert to fraction form
88,137.62/121,629.99 = 47,851.35/x - Step 3: Cross multiply
88,137.62x = 121,629.99 × 47,851.35 - Step 4: Simplify right side
88,137.62x = 5,820,158,982.73 - Step 5: Solve for x
x = 5,820,158,982.73/88,137.62 - Step 6: Final answer
x = 66,034.90
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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.