Finding the Fourth Proportional to 74,537.62, 102,863.79 and 40,548.02
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Solution
The fourth proportional to 74,537.62, 102,863.79 and 40,548.02 is: 55,957.28
Step by Step Solution
- Step 1: Write the proportion equation
74,537.62 : 102,863.79 = 40,548.02 : x - Step 2: Convert to fraction form
74,537.62/102,863.79 = 40,548.02/x - Step 3: Cross multiply
74,537.62x = 102,863.79 × 40,548.02 - Step 4: Simplify right side
74,537.62x = 4,170,922,499.88 - Step 5: Solve for x
x = 4,170,922,499.88/74,537.62 - Step 6: Final answer
x = 55,957.28
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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.