Finding the Fourth Proportional to 68,570.18, 102,896.12 and 30,616.49
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Solution
The fourth proportional to 68,570.18, 102,896.12 and 30,616.49 is: 45,942.98
Step by Step Solution
- Step 1: Write the proportion equation
68,570.18 : 102,896.12 = 30,616.49 : x - Step 2: Convert to fraction form
68,570.18/102,896.12 = 30,616.49/x - Step 3: Cross multiply
68,570.18x = 102,896.12 × 30,616.49 - Step 4: Simplify right side
68,570.18x = 3,150,318,362.80 - Step 5: Solve for x
x = 3,150,318,362.80/68,570.18 - Step 6: Final answer
x = 45,942.98
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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.