Finding the Fourth Proportional to 74,446.75, 102,736.52 and 40,912.75
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Solution
The fourth proportional to 74,446.75, 102,736.52 and 40,912.75 is: 56,459.60
Step by Step Solution
- Step 1: Write the proportion equation
74,446.75 : 102,736.52 = 40,912.75 : x - Step 2: Convert to fraction form
74,446.75/102,736.52 = 40,912.75/x - Step 3: Cross multiply
74,446.75x = 102,736.52 × 40,912.75 - Step 4: Simplify right side
74,446.75x = 4,203,233,558.63 - Step 5: Solve for x
x = 4,203,233,558.63/74,446.75 - Step 6: Final answer
x = 56,459.60
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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.