Finding the Fourth Proportional to 71,684.09, 107,539.14 and 29,540.75
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Solution
The fourth proportional to 71,684.09, 107,539.14 and 29,540.75 is: 44,316.49
Step by Step Solution
- Step 1: Write the proportion equation
71,684.09 : 107,539.14 = 29,540.75 : x - Step 2: Convert to fraction form
71,684.09/107,539.14 = 29,540.75/x - Step 3: Cross multiply
71,684.09x = 107,539.14 × 29,540.75 - Step 4: Simplify right side
71,684.09x = 3,176,787,027.94 - Step 5: Solve for x
x = 3,176,787,027.94/71,684.09 - Step 6: Final answer
x = 44,316.49
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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.