Finding the Fourth Proportional to 68,664.10, 102,996.15 and 27,105.70
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Solution
The fourth proportional to 68,664.10, 102,996.15 and 27,105.70 is: 40,658.55
Step by Step Solution
- Step 1: Write the proportion equation
68,664.10 : 102,996.15 = 27,105.70 : x - Step 2: Convert to fraction form
68,664.10/102,996.15 = 27,105.70/x - Step 3: Cross multiply
68,664.10x = 102,996.15 × 27,105.70 - Step 4: Simplify right side
68,664.10x = 2,791,782,743.06 - Step 5: Solve for x
x = 2,791,782,743.06/68,664.10 - Step 6: Final answer
x = 40,658.55
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1.5x scale
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.