Finding the Fourth Proportional to 76,261.92, 114,369.94 and 28,861.12
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Solution
The fourth proportional to 76,261.92, 114,369.94 and 28,861.12 is: 43,283.00
Step by Step Solution
- Step 1: Write the proportion equation
76,261.92 : 114,369.94 = 28,861.12 : x - Step 2: Convert to fraction form
76,261.92/114,369.94 = 28,861.12/x - Step 3: Cross multiply
76,261.92x = 114,369.94 × 28,861.12 - Step 4: Simplify right side
76,261.92x = 3,300,844,562.73 - Step 5: Solve for x
x = 3,300,844,562.73/76,261.92 - Step 6: Final answer
x = 43,283.00
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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.