Finding the Fourth Proportional to 69,728.80, 104,600.12 and 22,331.99
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Solution
The fourth proportional to 69,728.80, 104,600.12 and 22,331.99 is: 33,500.20
Step by Step Solution
- Step 1: Write the proportion equation
69,728.80 : 104,600.12 = 22,331.99 : x - Step 2: Convert to fraction form
69,728.80/104,600.12 = 22,331.99/x - Step 3: Cross multiply
69,728.80x = 104,600.12 × 22,331.99 - Step 4: Simplify right side
69,728.80x = 2,335,928,833.84 - Step 5: Solve for x
x = 2,335,928,833.84/69,728.80 - Step 6: Final answer
x = 33,500.20
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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.