Finding the Fourth Proportional to 80,717.07, 121,075.41 and 38,469.09
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Solution
The fourth proportional to 80,717.07, 121,075.41 and 38,469.09 is: 57,703.54
Step by Step Solution
- Step 1: Write the proportion equation
80,717.07 : 121,075.41 = 38,469.09 : x - Step 2: Convert to fraction form
80,717.07/121,075.41 = 38,469.09/x - Step 3: Cross multiply
80,717.07x = 121,075.41 × 38,469.09 - Step 4: Simplify right side
80,717.07x = 4,657,660,844.08 - Step 5: Solve for x
x = 4,657,660,844.08/80,717.07 - Step 6: Final answer
x = 57,703.54
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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.