Finding the Fourth Proportional to 86,921.91, 130,391.37 and 27,743.31
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Solution
The fourth proportional to 86,921.91, 130,391.37 and 27,743.31 is: 41,617.68
Step by Step Solution
- Step 1: Write the proportion equation
86,921.91 : 130,391.37 = 27,743.31 : x - Step 2: Convert to fraction form
86,921.91/130,391.37 = 27,743.31/x - Step 3: Cross multiply
86,921.91x = 130,391.37 × 27,743.31 - Step 4: Simplify right side
86,921.91x = 3,617,488,199.23 - Step 5: Solve for x
x = 3,617,488,199.23/86,921.91 - Step 6: Final answer
x = 41,617.68
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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.