Finding the Fourth Proportional to 81,743.64, 122,662.77 and 34,354.99
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Solution
The fourth proportional to 81,743.64, 122,662.77 and 34,354.99 is: 51,552.37
Step by Step Solution
- Step 1: Write the proportion equation
81,743.64 : 122,662.77 = 34,354.99 : x - Step 2: Convert to fraction form
81,743.64/122,662.77 = 34,354.99/x - Step 3: Cross multiply
81,743.64x = 122,662.77 × 34,354.99 - Step 4: Simplify right side
81,743.64x = 4,214,078,236.72 - Step 5: Solve for x
x = 4,214,078,236.72/81,743.64 - Step 6: Final answer
x = 51,552.37
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.