Finding the Fourth Proportional to 71,790.21, 107,734.59 and 25,043.09
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Solution
The fourth proportional to 71,790.21, 107,734.59 and 25,043.09 is: 37,581.82
Step by Step Solution
- Step 1: Write the proportion equation
71,790.21 : 107,734.59 = 25,043.09 : x - Step 2: Convert to fraction form
71,790.21/107,734.59 = 25,043.09/x - Step 3: Cross multiply
71,790.21x = 107,734.59 × 25,043.09 - Step 4: Simplify right side
71,790.21x = 2,698,006,494.81 - Step 5: Solve for x
x = 2,698,006,494.81/71,790.21 - Step 6: Final answer
x = 37,581.82
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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.