Finding the Fourth Proportional to 71,685.09, 107,540.64 and 29,541.75
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Solution
The fourth proportional to 71,685.09, 107,540.64 and 29,541.75 is: 44,317.98
Step by Step Solution
- Step 1: Write the proportion equation
71,685.09 : 107,540.64 = 29,541.75 : x - Step 2: Convert to fraction form
71,685.09/107,540.64 = 29,541.75/x - Step 3: Cross multiply
71,685.09x = 107,540.64 × 29,541.75 - Step 4: Simplify right side
71,685.09x = 3,176,938,701.72 - Step 5: Solve for x
x = 3,176,938,701.72/71,685.09 - Step 6: Final answer
x = 44,317.98
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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.