Finding the Fourth Proportional to 115,209.12, 172,797.27 and 36,313.09
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Solution
The fourth proportional to 115,209.12, 172,797.27 and 36,313.09 is: 54,464.46
Step by Step Solution
- Step 1: Write the proportion equation
115,209.12 : 172,797.27 = 36,313.09 : x - Step 2: Convert to fraction form
115,209.12/172,797.27 = 36,313.09/x - Step 3: Cross multiply
115,209.12x = 172,797.27 × 36,313.09 - Step 4: Simplify right side
115,209.12x = 6,274,802,817.26 - Step 5: Solve for x
x = 6,274,802,817.26/115,209.12 - Step 6: Final answer
x = 54,464.46
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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.