Finding the Fourth Proportional to 94,115.21, 129,879.20 and 51,676.47
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Solution
The fourth proportional to 94,115.21, 129,879.20 and 51,676.47 is: 71,313.65
Step by Step Solution
- Step 1: Write the proportion equation
94,115.21 : 129,879.20 = 51,676.47 : x - Step 2: Convert to fraction form
94,115.21/129,879.20 = 51,676.47/x - Step 3: Cross multiply
94,115.21x = 129,879.20 × 51,676.47 - Step 4: Simplify right side
94,115.21x = 6,711,698,324.04 - Step 5: Solve for x
x = 6,711,698,324.04/94,115.21 - Step 6: Final answer
x = 71,313.65
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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.