Finding the Fourth Proportional to 77,163.56, 115,745.62 and 27,216.52
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Solution
The fourth proportional to 77,163.56, 115,745.62 and 27,216.52 is: 40,824.88
Step by Step Solution
- Step 1: Write the proportion equation
77,163.56 : 115,745.62 = 27,216.52 : x - Step 2: Convert to fraction form
77,163.56/115,745.62 = 27,216.52/x - Step 3: Cross multiply
77,163.56x = 115,745.62 × 27,216.52 - Step 4: Simplify right side
77,163.56x = 3,150,192,981.64 - Step 5: Solve for x
x = 3,150,192,981.64/77,163.56 - Step 6: Final answer
x = 40,824.88
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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.