Finding the Fourth Proportional to 94,161.92, 129,951.44 and 51,729.28
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Solution
The fourth proportional to 94,161.92, 129,951.44 and 51,729.28 is: 71,390.80
Step by Step Solution
- Step 1: Write the proportion equation
94,161.92 : 129,951.44 = 51,729.28 : x - Step 2: Convert to fraction form
94,161.92/129,951.44 = 51,729.28/x - Step 3: Cross multiply
94,161.92x = 129,951.44 × 51,729.28 - Step 4: Simplify right side
94,161.92x = 6,722,294,426.16 - Step 5: Solve for x
x = 6,722,294,426.16/94,161.92 - Step 6: Final answer
x = 71,390.80
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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.