Finding the Fourth Proportional to 82,157.80, 113,396.68 and 48,177.23
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Solution
The fourth proportional to 82,157.80, 113,396.68 and 48,177.23 is: 66,495.67
Step by Step Solution
- Step 1: Write the proportion equation
82,157.80 : 113,396.68 = 48,177.23 : x - Step 2: Convert to fraction form
82,157.80/113,396.68 = 48,177.23/x - Step 3: Cross multiply
82,157.80x = 113,396.68 × 48,177.23 - Step 4: Simplify right side
82,157.80x = 5,463,137,929.19 - Step 5: Solve for x
x = 5,463,137,929.19/82,157.80 - Step 6: Final answer
x = 66,495.67
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.