Finding the Fourth Proportional to 84,969.77, 117,245.14 and 49,163.12
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Solution
The fourth proportional to 84,969.77, 117,245.14 and 49,163.12 is: 67,837.50
Step by Step Solution
- Step 1: Write the proportion equation
84,969.77 : 117,245.14 = 49,163.12 : x - Step 2: Convert to fraction form
84,969.77/117,245.14 = 49,163.12/x - Step 3: Cross multiply
84,969.77x = 117,245.14 × 49,163.12 - Step 4: Simplify right side
84,969.77x = 5,764,136,178.10 - Step 5: Solve for x
x = 5,764,136,178.10/84,969.77 - Step 6: Final answer
x = 67,837.50
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.