Finding the Fourth Proportional to 73,162.44, 109,668.33 and 28,771.20
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Solution
The fourth proportional to 73,162.44, 109,668.33 and 28,771.20 is: 43,127.18
Step by Step Solution
- Step 1: Write the proportion equation
73,162.44 : 109,668.33 = 28,771.20 : x - Step 2: Convert to fraction form
73,162.44/109,668.33 = 28,771.20/x - Step 3: Cross multiply
73,162.44x = 109,668.33 × 28,771.20 - Step 4: Simplify right side
73,162.44x = 3,155,289,456.10 - Step 5: Solve for x
x = 3,155,289,456.10/73,162.44 - Step 6: Final answer
x = 43,127.18
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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.