Finding the Fourth Proportional to 90,327.29, 135,553.13 and 31,163.02
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Solution
The fourth proportional to 90,327.29, 135,553.13 and 31,163.02 is: 46,765.99
Step by Step Solution
- Step 1: Write the proportion equation
90,327.29 : 135,553.13 = 31,163.02 : x - Step 2: Convert to fraction form
90,327.29/135,553.13 = 31,163.02/x - Step 3: Cross multiply
90,327.29x = 135,553.13 × 31,163.02 - Step 4: Simplify right side
90,327.29x = 4,224,244,901.25 - Step 5: Solve for x
x = 4,224,244,901.25/90,327.29 - Step 6: Final answer
x = 46,765.99
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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.