Finding the Fourth Proportional to 87,879.24, 121,272.66 and 47,592.06
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Solution
The fourth proportional to 87,879.24, 121,272.66 and 47,592.06 is: 65,676.68
Step by Step Solution
- Step 1: Write the proportion equation
87,879.24 : 121,272.66 = 47,592.06 : x - Step 2: Convert to fraction form
87,879.24/121,272.66 = 47,592.06/x - Step 3: Cross multiply
87,879.24x = 121,272.66 × 47,592.06 - Step 4: Simplify right side
87,879.24x = 5,771,616,103.50 - Step 5: Solve for x
x = 5,771,616,103.50/87,879.24 - Step 6: Final answer
x = 65,676.68
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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.