Finding the Fourth Proportional to 115,331.34, 172,996.47 and 36,445.44
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Solution
The fourth proportional to 115,331.34, 172,996.47 and 36,445.44 is: 54,667.99
Step by Step Solution
- Step 1: Write the proportion equation
115,331.34 : 172,996.47 = 36,445.44 : x - Step 2: Convert to fraction form
115,331.34/172,996.47 = 36,445.44/x - Step 3: Cross multiply
115,331.34x = 172,996.47 × 36,445.44 - Step 4: Simplify right side
115,331.34x = 6,304,932,467.60 - Step 5: Solve for x
x = 6,304,932,467.60/115,331.34 - Step 6: Final answer
x = 54,667.99
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1.5x scale
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.