Finding the Fourth Proportional to 71,447.49, 107,163.63 and 29,331.99
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Solution
The fourth proportional to 71,447.49, 107,163.63 and 29,331.99 is: 43,994.86
Step by Step Solution
- Step 1: Write the proportion equation
71,447.49 : 107,163.63 = 29,331.99 : x - Step 2: Convert to fraction form
71,447.49/107,163.63 = 29,331.99/x - Step 3: Cross multiply
71,447.49x = 107,163.63 × 29,331.99 - Step 4: Simplify right side
71,447.49x = 3,143,322,523.52 - Step 5: Solve for x
x = 3,143,322,523.52/71,447.49 - Step 6: Final answer
x = 43,994.86
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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.