Finding the Fourth Proportional to 90,197.37, 135,296.96 and 40,279.99
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Solution
The fourth proportional to 90,197.37, 135,296.96 and 40,279.99 is: 60,420.39
Step by Step Solution
- Step 1: Write the proportion equation
90,197.37 : 135,296.96 = 40,279.99 : x - Step 2: Convert to fraction form
90,197.37/135,296.96 = 40,279.99/x - Step 3: Cross multiply
90,197.37x = 135,296.96 × 40,279.99 - Step 4: Simplify right side
90,197.37x = 5,449,760,195.83 - Step 5: Solve for x
x = 5,449,760,195.83/90,197.37 - Step 6: Final answer
x = 60,420.39
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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.