Finding the Fourth Proportional to 69,396.05, 104,078.51 and 31,920.12
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Solution
The fourth proportional to 69,396.05, 104,078.51 and 31,920.12 is: 47,873.02
Step by Step Solution
- Step 1: Write the proportion equation
69,396.05 : 104,078.51 = 31,920.12 : x - Step 2: Convert to fraction form
69,396.05/104,078.51 = 31,920.12/x - Step 3: Cross multiply
69,396.05x = 104,078.51 × 31,920.12 - Step 4: Simplify right side
69,396.05x = 3,322,198,528.62 - Step 5: Solve for x
x = 3,322,198,528.62/69,396.05 - Step 6: Final answer
x = 47,873.02
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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.