Finding the Fourth Proportional to 82,832.90, 124,115.70 and 74,959.70
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Solution
The fourth proportional to 82,832.90, 124,115.70 and 74,959.70 is: 112,318.60
Step by Step Solution
- Step 1: Write the proportion equation
82,832.90 : 124,115.70 = 74,959.70 : x - Step 2: Convert to fraction form
82,832.90/124,115.70 = 74,959.70/x - Step 3: Cross multiply
82,832.90x = 124,115.70 × 74,959.70 - Step 4: Simplify right side
82,832.90x = 9,303,675,637.29 - Step 5: Solve for x
x = 9,303,675,637.29/82,832.90 - Step 6: Final answer
x = 112,318.60
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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.