Finding the Fourth Proportional to 75,809.52, 113,718.33 and 29,058.75
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Solution
The fourth proportional to 75,809.52, 113,718.33 and 29,058.75 is: 43,589.68
Step by Step Solution
- Step 1: Write the proportion equation
75,809.52 : 113,718.33 = 29,058.75 : x - Step 2: Convert to fraction form
75,809.52/113,718.33 = 29,058.75/x - Step 3: Cross multiply
75,809.52x = 113,718.33 × 29,058.75 - Step 4: Simplify right side
75,809.52x = 3,304,512,521.89 - Step 5: Solve for x
x = 3,304,512,521.89/75,809.52 - Step 6: Final answer
x = 43,589.68
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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.