Finding the Fourth Proportional to 68,616.60, 102,924.90 and 29,163.80
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Solution
The fourth proportional to 68,616.60, 102,924.90 and 29,163.80 is: 43,745.70
Step by Step Solution
- Step 1: Write the proportion equation
68,616.60 : 102,924.90 = 29,163.80 : x - Step 2: Convert to fraction form
68,616.60/102,924.90 = 29,163.80/x - Step 3: Cross multiply
68,616.60x = 102,924.90 × 29,163.80 - Step 4: Simplify right side
68,616.60x = 3,001,681,198.62 - Step 5: Solve for x
x = 3,001,681,198.62/68,616.60 - Step 6: Final answer
x = 43,745.70
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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.