Finding the Fourth Proportional to 76,138.28, 114,177.18 and 29,361.32
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Solution
The fourth proportional to 76,138.28, 114,177.18 and 29,361.32 is: 44,030.32
Step by Step Solution
- Step 1: Write the proportion equation
76,138.28 : 114,177.18 = 29,361.32 : x - Step 2: Convert to fraction form
76,138.28/114,177.18 = 29,361.32/x - Step 3: Cross multiply
76,138.28x = 114,177.18 × 29,361.32 - Step 4: Simplify right side
76,138.28x = 3,352,392,718.68 - Step 5: Solve for x
x = 3,352,392,718.68/76,138.28 - Step 6: Final answer
x = 44,030.32
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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.