Finding the Fourth Proportional to 90,743.43, 136,121.63 and 24,183.21
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Solution
The fourth proportional to 90,743.43, 136,121.63 and 24,183.21 is: 36,276.54
Step by Step Solution
- Step 1: Write the proportion equation
90,743.43 : 136,121.63 = 24,183.21 : x - Step 2: Convert to fraction form
90,743.43/136,121.63 = 24,183.21/x - Step 3: Cross multiply
90,743.43x = 136,121.63 × 24,183.21 - Step 4: Simplify right side
90,743.43x = 3,291,857,842.92 - Step 5: Solve for x
x = 3,291,857,842.92/90,743.43 - Step 6: Final answer
x = 36,276.54
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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.