Finding the Fourth Proportional to 81,722.99, 122,591.54 and 22,558.67
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Solution
The fourth proportional to 81,722.99, 122,591.54 and 22,558.67 is: 33,839.95
Step by Step Solution
- Step 1: Write the proportion equation
81,722.99 : 122,591.54 = 22,558.67 : x - Step 2: Convert to fraction form
81,722.99/122,591.54 = 22,558.67/x - Step 3: Cross multiply
81,722.99x = 122,591.54 × 22,558.67 - Step 4: Simplify right side
81,722.99x = 2,765,501,998.81 - Step 5: Solve for x
x = 2,765,501,998.81/81,722.99 - Step 6: Final answer
x = 33,839.95
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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.