Finding the Fourth Proportional to 51,021.18, 76,416.36 and 27,286.80
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Solution
The fourth proportional to 51,021.18, 76,416.36 and 27,286.80 is: 40,868.48
Step by Step Solution
- Step 1: Write the proportion equation
51,021.18 : 76,416.36 = 27,286.80 : x - Step 2: Convert to fraction form
51,021.18/76,416.36 = 27,286.80/x - Step 3: Cross multiply
51,021.18x = 76,416.36 × 27,286.80 - Step 4: Simplify right side
51,021.18x = 2,085,157,932.05 - Step 5: Solve for x
x = 2,085,157,932.05/51,021.18 - Step 6: Final answer
x = 40,868.48
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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.