Finding the Fourth Proportional to 73,076.16, 100,845.12 and 39,542.08
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Solution
The fourth proportional to 73,076.16, 100,845.12 and 39,542.08 is: 54,568.08
Step by Step Solution
- Step 1: Write the proportion equation
73,076.16 : 100,845.12 = 39,542.08 : x - Step 2: Convert to fraction form
73,076.16/100,845.12 = 39,542.08/x - Step 3: Cross multiply
73,076.16x = 100,845.12 × 39,542.08 - Step 4: Simplify right side
73,076.16x = 3,987,625,802.65 - Step 5: Solve for x
x = 3,987,625,802.65/73,076.16 - Step 6: Final answer
x = 54,568.08
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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.