Finding the Fourth Proportional to 76,971.30, 115,407.18 and 50,596.08
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Solution
The fourth proportional to 76,971.30, 115,407.18 and 50,596.08 is: 75,861.40
Step by Step Solution
- Step 1: Write the proportion equation
76,971.30 : 115,407.18 = 50,596.08 : x - Step 2: Convert to fraction form
76,971.30/115,407.18 = 50,596.08/x - Step 3: Cross multiply
76,971.30x = 115,407.18 × 50,596.08 - Step 4: Simplify right side
76,971.30x = 5,839,150,911.85 - Step 5: Solve for x
x = 5,839,150,911.85/76,971.30 - Step 6: Final answer
x = 75,861.40
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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.