Finding the Fourth Proportional to 73,260.99, 109,879.74 and 20,674.17
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Solution
The fourth proportional to 73,260.99, 109,879.74 and 20,674.17 is: 31,007.94
Step by Step Solution
- Step 1: Write the proportion equation
73,260.99 : 109,879.74 = 20,674.17 : x - Step 2: Convert to fraction form
73,260.99/109,879.74 = 20,674.17/x - Step 3: Cross multiply
73,260.99x = 109,879.74 × 20,674.17 - Step 4: Simplify right side
73,260.99x = 2,271,672,424.32 - Step 5: Solve for x
x = 2,271,672,424.32/73,260.99 - Step 6: Final answer
x = 31,007.94
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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.