Finding the Fourth Proportional to 86,879.34, 130,329.27 and 27,694.26
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Solution
The fourth proportional to 86,879.34, 130,329.27 and 27,694.26 is: 41,544.66
Step by Step Solution
- Step 1: Write the proportion equation
86,879.34 : 130,329.27 = 27,694.26 : x - Step 2: Convert to fraction form
86,879.34/130,329.27 = 27,694.26/x - Step 3: Cross multiply
86,879.34x = 130,329.27 × 27,694.26 - Step 4: Simplify right side
86,879.34x = 3,609,372,688.99 - Step 5: Solve for x
x = 3,609,372,688.99/86,879.34 - Step 6: Final answer
x = 41,544.66
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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.