Finding the Fourth Proportional to 82,652.13, 123,965.67 and 26,486.31
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Solution
The fourth proportional to 82,652.13, 123,965.67 and 26,486.31 is: 39,725.45
Step by Step Solution
- Step 1: Write the proportion equation
82,652.13 : 123,965.67 = 26,486.31 : x - Step 2: Convert to fraction form
82,652.13/123,965.67 = 26,486.31/x - Step 3: Cross multiply
82,652.13x = 123,965.67 × 26,486.31 - Step 4: Simplify right side
82,652.13x = 3,283,393,164.98 - Step 5: Solve for x
x = 3,283,393,164.98/82,652.13 - Step 6: Final answer
x = 39,725.45
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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.