Finding the Fourth Proportional to 115,018.96, 172,530.73 and 30,778.99
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Solution
The fourth proportional to 115,018.96, 172,530.73 and 30,778.99 is: 46,169.09
Step by Step Solution
- Step 1: Write the proportion equation
115,018.96 : 172,530.73 = 30,778.99 : x - Step 2: Convert to fraction form
115,018.96/172,530.73 = 30,778.99/x - Step 3: Cross multiply
115,018.96x = 172,530.73 × 30,778.99 - Step 4: Simplify right side
115,018.96x = 5,310,321,307.08 - Step 5: Solve for x
x = 5,310,321,307.08/115,018.96 - Step 6: Final answer
x = 46,169.09
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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.