Finding the Fourth Proportional to 86,220.25, 129,335.84 and 27,058.25
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Solution
The fourth proportional to 86,220.25, 129,335.84 and 27,058.25 is: 40,589.09
Step by Step Solution
- Step 1: Write the proportion equation
86,220.25 : 129,335.84 = 27,058.25 : x - Step 2: Convert to fraction form
86,220.25/129,335.84 = 27,058.25/x - Step 3: Cross multiply
86,220.25x = 129,335.84 × 27,058.25 - Step 4: Simplify right side
86,220.25x = 3,499,601,782.20 - Step 5: Solve for x
x = 3,499,601,782.20/86,220.25 - Step 6: Final answer
x = 40,589.09
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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.