Finding the Fourth Proportional to 68,489.60, 102,561.60 and 44,988.80
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Solution
The fourth proportional to 68,489.60, 102,561.60 and 44,988.80 is: 67,369.69
Step by Step Solution
- Step 1: Write the proportion equation
68,489.60 : 102,561.60 = 44,988.80 : x - Step 2: Convert to fraction form
68,489.60/102,561.60 = 44,988.80/x - Step 3: Cross multiply
68,489.60x = 102,561.60 × 44,988.80 - Step 4: Simplify right side
68,489.60x = 4,614,123,310.08 - Step 5: Solve for x
x = 4,614,123,310.08/68,489.60 - Step 6: Final answer
x = 67,369.69
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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.