Finding the Fourth Proportional to 74,441.26, 102,729.75 and 40,907.26
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Solution
The fourth proportional to 74,441.26, 102,729.75 and 40,907.26 is: 56,452.46
Step by Step Solution
- Step 1: Write the proportion equation
74,441.26 : 102,729.75 = 40,907.26 : x - Step 2: Convert to fraction form
74,441.26/102,729.75 = 40,907.26/x - Step 3: Cross multiply
74,441.26x = 102,729.75 × 40,907.26 - Step 4: Simplify right side
74,441.26x = 4,202,392,592.99 - Step 5: Solve for x
x = 4,202,392,592.99/74,441.26 - Step 6: Final answer
x = 56,452.46
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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.