Finding the Fourth Proportional to 84,553.53, 126,720.08 and 47,112.09
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Solution
The fourth proportional to 84,553.53, 126,720.08 and 47,112.09 is: 70,606.72
Step by Step Solution
- Step 1: Write the proportion equation
84,553.53 : 126,720.08 = 47,112.09 : x - Step 2: Convert to fraction form
84,553.53/126,720.08 = 47,112.09/x - Step 3: Cross multiply
84,553.53x = 126,720.08 × 47,112.09 - Step 4: Simplify right side
84,553.53x = 5,970,047,578.21 - Step 5: Solve for x
x = 5,970,047,578.21/84,553.53 - Step 6: Final answer
x = 70,606.72
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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.