Finding the Fourth Proportional to 82,142.49, 113,354.10 and 46,331.99
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Solution
The fourth proportional to 82,142.49, 113,354.10 and 46,331.99 is: 63,936.72
Step by Step Solution
- Step 1: Write the proportion equation
82,142.49 : 113,354.10 = 46,331.99 : x - Step 2: Convert to fraction form
82,142.49/113,354.10 = 46,331.99/x - Step 3: Cross multiply
82,142.49x = 113,354.10 × 46,331.99 - Step 4: Simplify right side
82,142.49x = 5,251,921,027.66 - Step 5: Solve for x
x = 5,251,921,027.66/82,142.49 - Step 6: Final answer
x = 63,936.72
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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.