Finding the Fourth Proportional to 99,112.24, 148,629.48 and 39,936.88
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Solution
The fourth proportional to 99,112.24, 148,629.48 and 39,936.88 is: 59,889.65
Step by Step Solution
- Step 1: Write the proportion equation
99,112.24 : 148,629.48 = 39,936.88 : x - Step 2: Convert to fraction form
99,112.24/148,629.48 = 39,936.88/x - Step 3: Cross multiply
99,112.24x = 148,629.48 × 39,936.88 - Step 4: Simplify right side
99,112.24x = 5,935,797,707.22 - Step 5: Solve for x
x = 5,935,797,707.22/99,112.24 - Step 6: Final answer
x = 59,889.65
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1.5x scale
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.