Finding the Fourth Proportional to 91,163.19, 125,811.51 and 50,884.81
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Solution
The fourth proportional to 91,163.19, 125,811.51 and 50,884.81 is: 70,224.56
Step by Step Solution
- Step 1: Write the proportion equation
91,163.19 : 125,811.51 = 50,884.81 : x - Step 2: Convert to fraction form
91,163.19/125,811.51 = 50,884.81/x - Step 3: Cross multiply
91,163.19x = 125,811.51 × 50,884.81 - Step 4: Simplify right side
91,163.19x = 6,401,894,782.16 - Step 5: Solve for x
x = 6,401,894,782.16/91,163.19 - Step 6: Final answer
x = 70,224.56
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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.