Finding the Fourth Proportional to 75,785.36, 113,694.48 and 29,038.28
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Solution
The fourth proportional to 75,785.36, 113,694.48 and 29,038.28 is: 43,563.72
Step by Step Solution
- Step 1: Write the proportion equation
75,785.36 : 113,694.48 = 29,038.28 : x - Step 2: Convert to fraction form
75,785.36/113,694.48 = 29,038.28/x - Step 3: Cross multiply
75,785.36x = 113,694.48 × 29,038.28 - Step 4: Simplify right side
75,785.36x = 3,301,492,144.69 - Step 5: Solve for x
x = 3,301,492,144.69/75,785.36 - Step 6: Final answer
x = 43,563.72
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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.