Finding the Fourth Proportional to 71,829.39, 107,669.19 and 40,193.07
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Solution
The fourth proportional to 71,829.39, 107,669.19 and 40,193.07 is: 60,247.70
Step by Step Solution
- Step 1: Write the proportion equation
71,829.39 : 107,669.19 = 40,193.07 : x - Step 2: Convert to fraction form
71,829.39/107,669.19 = 40,193.07/x - Step 3: Cross multiply
71,829.39x = 107,669.19 × 40,193.07 - Step 4: Simplify right side
71,829.39x = 4,327,555,290.51 - Step 5: Solve for x
x = 4,327,555,290.51/71,829.39 - Step 6: Final answer
x = 60,247.70
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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.