Finding the Fourth Proportional to 66,918.26, 100,416.26 and 29,982.26
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Solution
The fourth proportional to 66,918.26, 100,416.26 and 29,982.26 is: 44,990.81
Step by Step Solution
- Step 1: Write the proportion equation
66,918.26 : 100,416.26 = 29,982.26 : x - Step 2: Convert to fraction form
66,918.26/100,416.26 = 29,982.26/x - Step 3: Cross multiply
66,918.26x = 100,416.26 × 29,982.26 - Step 4: Simplify right side
66,918.26x = 3,010,706,415.55 - Step 5: Solve for x
x = 3,010,706,415.55/66,918.26 - Step 6: Final answer
x = 44,990.81
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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.