Finding the Fourth Proportional to 75,168.72, 112,794.36 and 43,617.36
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Solution
The fourth proportional to 75,168.72, 112,794.36 and 43,617.36 is: 65,449.99
Step by Step Solution
- Step 1: Write the proportion equation
75,168.72 : 112,794.36 = 43,617.36 : x - Step 2: Convert to fraction form
75,168.72/112,794.36 = 43,617.36/x - Step 3: Cross multiply
75,168.72x = 112,794.36 × 43,617.36 - Step 4: Simplify right side
75,168.72x = 4,919,792,206.09 - Step 5: Solve for x
x = 4,919,792,206.09/75,168.72 - Step 6: Final answer
x = 65,449.99
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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.