Finding the Fourth Proportional to 86,806.63, 130,219.49 and 27,628.44
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Solution
The fourth proportional to 86,806.63, 130,219.49 and 27,628.44 is: 41,445.70
Step by Step Solution
- Step 1: Write the proportion equation
86,806.63 : 130,219.49 = 27,628.44 : x - Step 2: Convert to fraction form
86,806.63/130,219.49 = 27,628.44/x - Step 3: Cross multiply
86,806.63x = 130,219.49 × 27,628.44 - Step 4: Simplify right side
86,806.63x = 3,597,761,366.30 - Step 5: Solve for x
x = 3,597,761,366.30/86,806.63 - Step 6: Final answer
x = 41,445.70
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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.