Finding the Fourth Proportional to 89,674.73, 123,741.97 and 55,213.99
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Solution
The fourth proportional to 89,674.73, 123,741.97 and 55,213.99 is: 76,189.67
Step by Step Solution
- Step 1: Write the proportion equation
89,674.73 : 123,741.97 = 55,213.99 : x - Step 2: Convert to fraction form
89,674.73/123,741.97 = 55,213.99/x - Step 3: Cross multiply
89,674.73x = 123,741.97 × 55,213.99 - Step 4: Simplify right side
89,674.73x = 6,832,288,327.91 - Step 5: Solve for x
x = 6,832,288,327.91/89,674.73 - Step 6: Final answer
x = 76,189.67
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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.