Finding the Fourth Proportional to 81,768.99, 122,692.22 and 34,394.46
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Solution
The fourth proportional to 81,768.99, 122,692.22 and 34,394.46 is: 51,607.98
Step by Step Solution
- Step 1: Write the proportion equation
81,768.99 : 122,692.22 = 34,394.46 : x - Step 2: Convert to fraction form
81,768.99/122,692.22 = 34,394.46/x - Step 3: Cross multiply
81,768.99x = 122,692.22 × 34,394.46 - Step 4: Simplify right side
81,768.99x = 4,219,932,481.13 - Step 5: Solve for x
x = 4,219,932,481.13/81,768.99 - Step 6: Final answer
x = 51,607.98
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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.