Finding the Fourth Proportional to 79,831.19, 110,163.29 and 45,816.05
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Solution
The fourth proportional to 79,831.19, 110,163.29 and 45,816.05 is: 63,223.99
Step by Step Solution
- Step 1: Write the proportion equation
79,831.19 : 110,163.29 = 45,816.05 : x - Step 2: Convert to fraction form
79,831.19/110,163.29 = 45,816.05/x - Step 3: Cross multiply
79,831.19x = 110,163.29 × 45,816.05 - Step 4: Simplify right side
79,831.19x = 5,047,246,022.91 - Step 5: Solve for x
x = 5,047,246,022.91/79,831.19 - Step 6: Final answer
x = 63,223.99
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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.