Finding the Fourth Proportional to 74,573.10, 102,913.11 and 40,583.97
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Solution
The fourth proportional to 74,573.10, 102,913.11 and 40,583.97 is: 56,007.09
Step by Step Solution
- Step 1: Write the proportion equation
74,573.10 : 102,913.11 = 40,583.97 : x - Step 2: Convert to fraction form
74,573.10/102,913.11 = 40,583.97/x - Step 3: Cross multiply
74,573.10x = 102,913.11 × 40,583.97 - Step 4: Simplify right side
74,573.10x = 4,176,622,568.85 - Step 5: Solve for x
x = 4,176,622,568.85/74,573.10 - Step 6: Final answer
x = 56,007.09
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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.