Finding the Fourth Proportional to 75,831.36, 104,647.62 and 41,840.28
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Solution
The fourth proportional to 75,831.36, 104,647.62 and 41,840.28 is: 57,739.78
Step by Step Solution
- Step 1: Write the proportion equation
75,831.36 : 104,647.62 = 41,840.28 : x - Step 2: Convert to fraction form
75,831.36/104,647.62 = 41,840.28/x - Step 3: Cross multiply
75,831.36x = 104,647.62 × 41,840.28 - Step 4: Simplify right side
75,831.36x = 4,378,485,722.13 - Step 5: Solve for x
x = 4,378,485,722.13/75,831.36 - Step 6: Final answer
x = 57,739.78
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.