Finding the Fourth Proportional to 88,731.09, 122,445.41 and 48,446.55
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Solution
The fourth proportional to 88,731.09, 122,445.41 and 48,446.55 is: 66,854.33
Step by Step Solution
- Step 1: Write the proportion equation
88,731.09 : 122,445.41 = 48,446.55 : x - Step 2: Convert to fraction form
88,731.09/122,445.41 = 48,446.55/x - Step 3: Cross multiply
88,731.09x = 122,445.41 × 48,446.55 - Step 4: Simplify right side
88,731.09x = 5,932,057,435.60 - Step 5: Solve for x
x = 5,932,057,435.60/88,731.09 - Step 6: Final answer
x = 66,854.33
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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.