Finding the Fourth Proportional to 68,644.20, 102,966.30 and 29,202.60
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Solution
The fourth proportional to 68,644.20, 102,966.30 and 29,202.60 is: 43,803.90
Step by Step Solution
- Step 1: Write the proportion equation
68,644.20 : 102,966.30 = 29,202.60 : x - Step 2: Convert to fraction form
68,644.20/102,966.30 = 29,202.60/x - Step 3: Cross multiply
68,644.20x = 102,966.30 × 29,202.60 - Step 4: Simplify right side
68,644.20x = 3,006,883,672.38 - Step 5: Solve for x
x = 3,006,883,672.38/68,644.20 - Step 6: Final answer
x = 43,803.90
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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.