Finding the Fourth Proportional to 68,622.05, 102,942.92 and 21,241.31
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Solution
The fourth proportional to 68,622.05, 102,942.92 and 21,241.31 is: 31,865.00
Step by Step Solution
- Step 1: Write the proportion equation
68,622.05 : 102,942.92 = 21,241.31 : x - Step 2: Convert to fraction form
68,622.05/102,942.92 = 21,241.31/x - Step 3: Cross multiply
68,622.05x = 102,942.92 × 21,241.31 - Step 4: Simplify right side
68,622.05x = 2,186,641,855.10 - Step 5: Solve for x
x = 2,186,641,855.10/68,622.05 - Step 6: Final answer
x = 31,865.00
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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.