Finding the Fourth Proportional to 90,136.26, 135,286.07 and 48,051.63
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Solution
The fourth proportional to 90,136.26, 135,286.07 and 48,051.63 is: 72,120.99
Step by Step Solution
- Step 1: Write the proportion equation
90,136.26 : 135,286.07 = 48,051.63 : x - Step 2: Convert to fraction form
90,136.26/135,286.07 = 48,051.63/x - Step 3: Cross multiply
90,136.26x = 135,286.07 × 48,051.63 - Step 4: Simplify right side
90,136.26x = 6,500,715,939.54 - Step 5: Solve for x
x = 6,500,715,939.54/90,136.26 - Step 6: Final answer
x = 72,120.99
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1.5x scale
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.