Finding the Fourth Proportional to 74,600.21, 102,949.60 and 40,609.68
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Solution
The fourth proportional to 74,600.21, 102,949.60 and 40,609.68 is: 56,042.06
Step by Step Solution
- Step 1: Write the proportion equation
74,600.21 : 102,949.60 = 40,609.68 : x - Step 2: Convert to fraction form
74,600.21/102,949.60 = 40,609.68/x - Step 3: Cross multiply
74,600.21x = 102,949.60 × 40,609.68 - Step 4: Simplify right side
74,600.21x = 4,180,749,797.38 - Step 5: Solve for x
x = 4,180,749,797.38/74,600.21 - Step 6: Final answer
x = 56,042.06
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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.