Finding the Fourth Proportional to 126,399.99, 189,600.50 and 31,629.91
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Solution
The fourth proportional to 126,399.99, 189,600.50 and 31,629.91 is: 47,444.99
Step by Step Solution
- Step 1: Write the proportion equation
126,399.99 : 189,600.50 = 31,629.91 : x - Step 2: Convert to fraction form
126,399.99/189,600.50 = 31,629.91/x - Step 3: Cross multiply
126,399.99x = 189,600.50 × 31,629.91 - Step 4: Simplify right side
126,399.99x = 5,997,046,750.96 - Step 5: Solve for x
x = 5,997,046,750.96/126,399.99 - Step 6: Final answer
x = 47,444.99
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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.