Finding the Fourth Proportional to 75,863.36, 113,809.68 and 29,112.59
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Solution
The fourth proportional to 75,863.36, 113,809.68 and 29,112.59 is: 43,674.50
Step by Step Solution
- Step 1: Write the proportion equation
75,863.36 : 113,809.68 = 29,112.59 : x - Step 2: Convert to fraction form
75,863.36/113,809.68 = 29,112.59/x - Step 3: Cross multiply
75,863.36x = 113,809.68 × 29,112.59 - Step 4: Simplify right side
75,863.36x = 3,313,293,982.82 - Step 5: Solve for x
x = 3,313,293,982.82/75,863.36 - Step 6: Final answer
x = 43,674.50
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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.