Finding the Fourth Proportional to 73,182.72, 100,995.84 and 40,920.96
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Solution
The fourth proportional to 73,182.72, 100,995.84 and 40,920.96 is: 56,472.99
Step by Step Solution
- Step 1: Write the proportion equation
73,182.72 : 100,995.84 = 40,920.96 : x - Step 2: Convert to fraction form
73,182.72/100,995.84 = 40,920.96/x - Step 3: Cross multiply
73,182.72x = 100,995.84 × 40,920.96 - Step 4: Simplify right side
73,182.72x = 4,132,846,728.81 - Step 5: Solve for x
x = 4,132,846,728.81/73,182.72 - Step 6: Final answer
x = 56,472.99
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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.