Finding the Fourth Proportional to 75,718.13, 113,609.99 and 40,616.78
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Solution
The fourth proportional to 75,718.13, 113,609.99 and 40,616.78 is: 60,942.76
Step by Step Solution
- Step 1: Write the proportion equation
75,718.13 : 113,609.99 = 40,616.78 : x - Step 2: Convert to fraction form
75,718.13/113,609.99 = 40,616.78/x - Step 3: Cross multiply
75,718.13x = 113,609.99 × 40,616.78 - Step 4: Simplify right side
75,718.13x = 4,614,471,198.50 - Step 5: Solve for x
x = 4,614,471,198.50/75,718.13 - Step 6: Final answer
x = 60,942.76
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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.