Finding the Fourth Proportional to 75,152.76, 112,736.60 and 27,780.26
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Solution
The fourth proportional to 75,152.76, 112,736.60 and 27,780.26 is: 41,673.15
Step by Step Solution
- Step 1: Write the proportion equation
75,152.76 : 112,736.60 = 27,780.26 : x - Step 2: Convert to fraction form
75,152.76/112,736.60 = 27,780.26/x - Step 3: Cross multiply
75,152.76x = 112,736.60 × 27,780.26 - Step 4: Simplify right side
75,152.76x = 3,131,852,059.52 - Step 5: Solve for x
x = 3,131,852,059.52/75,152.76 - Step 6: Final answer
x = 41,673.15
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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.