Finding the Fourth Proportional to 93,163.26, 128,561.85 and 50,720.94
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Solution
The fourth proportional to 93,163.26, 128,561.85 and 50,720.94 is: 69,993.02
Step by Step Solution
- Step 1: Write the proportion equation
93,163.26 : 128,561.85 = 50,720.94 : x - Step 2: Convert to fraction form
93,163.26/128,561.85 = 50,720.94/x - Step 3: Cross multiply
93,163.26x = 128,561.85 × 50,720.94 - Step 4: Simplify right side
93,163.26x = 6,520,777,880.14 - Step 5: Solve for x
x = 6,520,777,880.14/93,163.26 - Step 6: Final answer
x = 69,993.02
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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.