Finding the Fourth Proportional to 79,989.19, 120,007.68 and 23,831.26
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Solution
The fourth proportional to 79,989.19, 120,007.68 and 23,831.26 is: 35,754.01
Step by Step Solution
- Step 1: Write the proportion equation
79,989.19 : 120,007.68 = 23,831.26 : x - Step 2: Convert to fraction form
79,989.19/120,007.68 = 23,831.26/x - Step 3: Cross multiply
79,989.19x = 120,007.68 × 23,831.26 - Step 4: Simplify right side
79,989.19x = 2,859,934,224.08 - Step 5: Solve for x
x = 2,859,934,224.08/79,989.19 - Step 6: Final answer
x = 35,754.01
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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.