Finding the Fourth Proportional to 68,221.68, 102,343.44 and 28,784.60
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Solution
The fourth proportional to 68,221.68, 102,343.44 and 28,784.60 is: 43,181.50
Step by Step Solution
- Step 1: Write the proportion equation
68,221.68 : 102,343.44 = 28,784.60 : x - Step 2: Convert to fraction form
68,221.68/102,343.44 = 28,784.60/x - Step 3: Cross multiply
68,221.68x = 102,343.44 × 28,784.60 - Step 4: Simplify right side
68,221.68x = 2,945,914,471.31 - Step 5: Solve for x
x = 2,945,914,471.31/68,221.68 - Step 6: Final answer
x = 43,181.50
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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.