Finding the Fourth Proportional to 76,558.28, 114,860.74 and 39,144.60
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Solution
The fourth proportional to 76,558.28, 114,860.74 and 39,144.60 is: 58,728.82
Step by Step Solution
- Step 1: Write the proportion equation
76,558.28 : 114,860.74 = 39,144.60 : x - Step 2: Convert to fraction form
76,558.28/114,860.74 = 39,144.60/x - Step 3: Cross multiply
76,558.28x = 114,860.74 × 39,144.60 - Step 4: Simplify right side
76,558.28x = 4,496,177,723.00 - Step 5: Solve for x
x = 4,496,177,723.00/76,558.28 - Step 6: Final answer
x = 58,728.82
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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.