Finding the Fourth Proportional to 76,310.44, 114,487.74 and 31,914.28
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Solution
The fourth proportional to 76,310.44, 114,487.74 and 31,914.28 is: 47,880.65
Step by Step Solution
- Step 1: Write the proportion equation
76,310.44 : 114,487.74 = 31,914.28 : x - Step 2: Convert to fraction form
76,310.44/114,487.74 = 31,914.28/x - Step 3: Cross multiply
76,310.44x = 114,487.74 × 31,914.28 - Step 4: Simplify right side
76,310.44x = 3,653,793,790.93 - Step 5: Solve for x
x = 3,653,793,790.93/76,310.44 - Step 6: Final answer
x = 47,880.65
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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.