Finding the Fourth Proportional to 85,154.21, 117,512.84 and 49,364.97
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Solution
The fourth proportional to 85,154.21, 117,512.84 and 49,364.97 is: 68,123.68
Step by Step Solution
- Step 1: Write the proportion equation
85,154.21 : 117,512.84 = 49,364.97 : x - Step 2: Convert to fraction form
85,154.21/117,512.84 = 49,364.97/x - Step 3: Cross multiply
85,154.21x = 117,512.84 × 49,364.97 - Step 4: Simplify right side
85,154.21x = 5,801,017,821.21 - Step 5: Solve for x
x = 5,801,017,821.21/85,154.21 - Step 6: Final answer
x = 68,123.68
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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.