Finding the Fourth Proportional to 99,493.91, 137,304.97 and 54,173.66
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Solution
The fourth proportional to 99,493.91, 137,304.97 and 54,173.66 is: 74,761.48
Step by Step Solution
- Step 1: Write the proportion equation
99,493.91 : 137,304.97 = 54,173.66 : x - Step 2: Convert to fraction form
99,493.91/137,304.97 = 54,173.66/x - Step 3: Cross multiply
99,493.91x = 137,304.97 × 54,173.66 - Step 4: Simplify right side
99,493.91x = 7,438,311,939.13 - Step 5: Solve for x
x = 7,438,311,939.13/99,493.91 - Step 6: Final answer
x = 74,761.48
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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.