Finding the Fourth Proportional to 90,310.63, 135,553.42 and 43,596.31
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Solution
The fourth proportional to 90,310.63, 135,553.42 and 43,596.31 is: 65,436.69
Step by Step Solution
- Step 1: Write the proportion equation
90,310.63 : 135,553.42 = 43,596.31 : x - Step 2: Convert to fraction form
90,310.63/135,553.42 = 43,596.31/x - Step 3: Cross multiply
90,310.63x = 135,553.42 × 43,596.31 - Step 4: Simplify right side
90,310.63x = 5,909,628,919.88 - Step 5: Solve for x
x = 5,909,628,919.88/90,310.63 - Step 6: Final answer
x = 65,436.69
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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.