Finding the Fourth Proportional to 76,228.44, 114,324.21 and 31,831.08
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Solution
The fourth proportional to 76,228.44, 114,324.21 and 31,831.08 is: 47,738.92
Step by Step Solution
- Step 1: Write the proportion equation
76,228.44 : 114,324.21 = 31,831.08 : x - Step 2: Convert to fraction form
76,228.44/114,324.21 = 31,831.08/x - Step 3: Cross multiply
76,228.44x = 114,324.21 × 31,831.08 - Step 4: Simplify right side
76,228.44x = 3,639,063,074.45 - Step 5: Solve for x
x = 3,639,063,074.45/76,228.44 - Step 6: Final answer
x = 47,738.92
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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.