Finding the Fourth Proportional to 77,660.91, 116,485.21 and 27,735.80
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Solution
The fourth proportional to 77,660.91, 116,485.21 and 27,735.80 is: 41,601.50
Step by Step Solution
- Step 1: Write the proportion equation
77,660.91 : 116,485.21 = 27,735.80 : x - Step 2: Convert to fraction form
77,660.91/116,485.21 = 27,735.80/x - Step 3: Cross multiply
77,660.91x = 116,485.21 × 27,735.80 - Step 4: Simplify right side
77,660.91x = 3,230,810,487.52 - Step 5: Solve for x
x = 3,230,810,487.52/77,660.91 - Step 6: Final answer
x = 41,601.50
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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.