Finding the Fourth Proportional to 82,415.21, 123,632.46 and 26,235.63
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Solution
The fourth proportional to 82,415.21, 123,632.46 and 26,235.63 is: 39,356.52
Step by Step Solution
- Step 1: Write the proportion equation
82,415.21 : 123,632.46 = 26,235.63 : x - Step 2: Convert to fraction form
82,415.21/123,632.46 = 26,235.63/x - Step 3: Cross multiply
82,415.21x = 123,632.46 × 26,235.63 - Step 4: Simplify right side
82,415.21x = 3,243,575,476.55 - Step 5: Solve for x
x = 3,243,575,476.55/82,415.21 - Step 6: Final answer
x = 39,356.52
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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.