Finding the Fourth Proportional to 115,256.55, 172,863.77 and 30,996.99
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Solution
The fourth proportional to 115,256.55, 172,863.77 and 30,996.99 is: 46,489.82
Step by Step Solution
- Step 1: Write the proportion equation
115,256.55 : 172,863.77 = 30,996.99 : x - Step 2: Convert to fraction form
115,256.55/172,863.77 = 30,996.99/x - Step 3: Cross multiply
115,256.55x = 172,863.77 × 30,996.99 - Step 4: Simplify right side
115,256.55x = 5,358,256,395.07 - Step 5: Solve for x
x = 5,358,256,395.07/115,256.55 - Step 6: Final answer
x = 46,489.82
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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.