Finding the Fourth Proportional to 82,725.20, 124,087.80 and 73,539.80
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Solution
The fourth proportional to 82,725.20, 124,087.80 and 73,539.80 is: 110,309.70
Step by Step Solution
- Step 1: Write the proportion equation
82,725.20 : 124,087.80 = 73,539.80 : x - Step 2: Convert to fraction form
82,725.20/124,087.80 = 73,539.80/x - Step 3: Cross multiply
82,725.20x = 124,087.80 × 73,539.80 - Step 4: Simplify right side
82,725.20x = 9,125,391,994.44 - Step 5: Solve for x
x = 9,125,391,994.44/82,725.20 - Step 6: Final answer
x = 110,309.70
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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.