Finding the Fourth Proportional to 75,660.51, 113,388.69 and 28,887.87
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Solution
The fourth proportional to 75,660.51, 113,388.69 and 28,887.87 is: 43,292.83
Step by Step Solution
- Step 1: Write the proportion equation
75,660.51 : 113,388.69 = 28,887.87 : x - Step 2: Convert to fraction form
75,660.51/113,388.69 = 28,887.87/x - Step 3: Cross multiply
75,660.51x = 113,388.69 × 28,887.87 - Step 4: Simplify right side
75,660.51x = 3,275,557,736.19 - Step 5: Solve for x
x = 3,275,557,736.19/75,660.51 - Step 6: Final answer
x = 43,292.83
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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.