Finding the Fourth Proportional to 91,021.97, 125,614.58 and 50,736.03
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Solution
The fourth proportional to 91,021.97, 125,614.58 and 50,736.03 is: 70,018.09
Step by Step Solution
- Step 1: Write the proportion equation
91,021.97 : 125,614.58 = 50,736.03 : x - Step 2: Convert to fraction form
91,021.97/125,614.58 = 50,736.03/x - Step 3: Cross multiply
91,021.97x = 125,614.58 × 50,736.03 - Step 4: Simplify right side
91,021.97x = 6,373,184,374.58 - Step 5: Solve for x
x = 6,373,184,374.58/91,021.97 - Step 6: Final answer
x = 70,018.09
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.