Finding the Fourth Proportional to 72,775.50, 109,163.23 and 20,184.99
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Solution
The fourth proportional to 72,775.50, 109,163.23 and 20,184.99 is: 30,277.48
Step by Step Solution
- Step 1: Write the proportion equation
72,775.50 : 109,163.23 = 20,184.99 : x - Step 2: Convert to fraction form
72,775.50/109,163.23 = 20,184.99/x - Step 3: Cross multiply
72,775.50x = 109,163.23 × 20,184.99 - Step 4: Simplify right side
72,775.50x = 2,203,458,705.92 - Step 5: Solve for x
x = 2,203,458,705.92/72,775.50 - Step 6: Final answer
x = 30,277.48
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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.