Finding the Fourth Proportional to 68,424.86, 102,622.62 and 39,942.84
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Solution
The fourth proportional to 68,424.86, 102,622.62 and 39,942.84 is: 59,905.70
Step by Step Solution
- Step 1: Write the proportion equation
68,424.86 : 102,622.62 = 39,942.84 : x - Step 2: Convert to fraction form
68,424.86/102,622.62 = 39,942.84/x - Step 3: Cross multiply
68,424.86x = 102,622.62 × 39,942.84 - Step 4: Simplify right side
68,424.86x = 4,099,038,891.04 - Step 5: Solve for x
x = 4,099,038,891.04/68,424.86 - Step 6: Final answer
x = 59,905.70
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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.