Finding the Fourth Proportional to 76,956.21, 106,170.35 and 46,730.12
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Solution
The fourth proportional to 76,956.21, 106,170.35 and 46,730.12 is: 64,469.81
Step by Step Solution
- Step 1: Write the proportion equation
76,956.21 : 106,170.35 = 46,730.12 : x - Step 2: Convert to fraction form
76,956.21/106,170.35 = 46,730.12/x - Step 3: Cross multiply
76,956.21x = 106,170.35 × 46,730.12 - Step 4: Simplify right side
76,956.21x = 4,961,352,431.44 - Step 5: Solve for x
x = 4,961,352,431.44/76,956.21 - Step 6: Final answer
x = 64,469.81
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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.