Finding the Fourth Proportional to 68,623.20, 102,939.60 and 27,064.80
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Solution
The fourth proportional to 68,623.20, 102,939.60 and 27,064.80 is: 40,599.09
Step by Step Solution
- Step 1: Write the proportion equation
68,623.20 : 102,939.60 = 27,064.80 : x - Step 2: Convert to fraction form
68,623.20/102,939.60 = 27,064.80/x - Step 3: Cross multiply
68,623.20x = 102,939.60 × 27,064.80 - Step 4: Simplify right side
68,623.20x = 2,786,039,686.08 - Step 5: Solve for x
x = 2,786,039,686.08/68,623.20 - Step 6: Final answer
x = 40,599.09
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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.