Finding the Fourth Proportional to 86,563.75, 129,858.58 and 27,379.75
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Solution
The fourth proportional to 86,563.75, 129,858.58 and 27,379.75 is: 41,073.72
Step by Step Solution
- Step 1: Write the proportion equation
86,563.75 : 129,858.58 = 27,379.75 : x - Step 2: Convert to fraction form
86,563.75/129,858.58 = 27,379.75/x - Step 3: Cross multiply
86,563.75x = 129,858.58 × 27,379.75 - Step 4: Simplify right side
86,563.75x = 3,555,494,669.56 - Step 5: Solve for x
x = 3,555,494,669.56/86,563.75 - Step 6: Final answer
x = 41,073.72
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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.