Finding the Fourth Proportional to 76,942.88, 115,110.66 and 58,276.70
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Solution
The fourth proportional to 76,942.88, 115,110.66 and 58,276.70 is: 87,185.06
Step by Step Solution
- Step 1: Write the proportion equation
76,942.88 : 115,110.66 = 58,276.70 : x - Step 2: Convert to fraction form
76,942.88/115,110.66 = 58,276.70/x - Step 3: Cross multiply
76,942.88x = 115,110.66 × 58,276.70 - Step 4: Simplify right side
76,942.88x = 6,708,269,399.62 - Step 5: Solve for x
x = 6,708,269,399.62/76,942.88 - Step 6: Final answer
x = 87,185.06
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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.