Finding the Fourth Proportional to 68,612.20, 102,918.30 and 41,885.80
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Solution
The fourth proportional to 68,612.20, 102,918.30 and 41,885.80 is: 62,828.70
Step by Step Solution
- Step 1: Write the proportion equation
68,612.20 : 102,918.30 = 41,885.80 : x - Step 2: Convert to fraction form
68,612.20/102,918.30 = 41,885.80/x - Step 3: Cross multiply
68,612.20x = 102,918.30 × 41,885.80 - Step 4: Simplify right side
68,612.20x = 4,310,815,330.14 - Step 5: Solve for x
x = 4,310,815,330.14/68,612.20 - Step 6: Final answer
x = 62,828.70
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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.