Finding the Fourth Proportional to 77,193.60, 115,790.40 and 32,821.80
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Solution
The fourth proportional to 77,193.60, 115,790.40 and 32,821.80 is: 49,232.70
Step by Step Solution
- Step 1: Write the proportion equation
77,193.60 : 115,790.40 = 32,821.80 : x - Step 2: Convert to fraction form
77,193.60/115,790.40 = 32,821.80/x - Step 3: Cross multiply
77,193.60x = 115,790.40 × 32,821.80 - Step 4: Simplify right side
77,193.60x = 3,800,449,350.72 - Step 5: Solve for x
x = 3,800,449,350.72/77,193.60 - Step 6: Final answer
x = 49,232.70
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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.