Finding the Fourth Proportional to 74,446.23, 102,742.10 and 40,919.19
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Solution
The fourth proportional to 74,446.23, 102,742.10 and 40,919.19 is: 56,471.94
Step by Step Solution
- Step 1: Write the proportion equation
74,446.23 : 102,742.10 = 40,919.19 : x - Step 2: Convert to fraction form
74,446.23/102,742.10 = 40,919.19/x - Step 3: Cross multiply
74,446.23x = 102,742.10 × 40,919.19 - Step 4: Simplify right side
74,446.23x = 4,204,123,306.30 - Step 5: Solve for x
x = 4,204,123,306.30/74,446.23 - Step 6: Final answer
x = 56,471.94
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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.