Finding the Fourth Proportional to 91,021.12, 125,603.97 and 50,177.07
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Solution
The fourth proportional to 91,021.12, 125,603.97 and 50,177.07 is: 69,241.50
Step by Step Solution
- Step 1: Write the proportion equation
91,021.12 : 125,603.97 = 50,177.07 : x - Step 2: Convert to fraction form
91,021.12/125,603.97 = 50,177.07/x - Step 3: Cross multiply
91,021.12x = 125,603.97 × 50,177.07 - Step 4: Simplify right side
91,021.12x = 6,302,439,006.80 - Step 5: Solve for x
x = 6,302,439,006.80/91,021.12 - Step 6: Final answer
x = 69,241.50
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1.5x scale
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.