Finding the Fourth Proportional to 74,159.62, 111,239.35 and 29,786.38
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Solution
The fourth proportional to 74,159.62, 111,239.35 and 29,786.38 is: 44,679.54
Step by Step Solution
- Step 1: Write the proportion equation
74,159.62 : 111,239.35 = 29,786.38 : x - Step 2: Convert to fraction form
74,159.62/111,239.35 = 29,786.38/x - Step 3: Cross multiply
74,159.62x = 111,239.35 × 29,786.38 - Step 4: Simplify right side
74,159.62x = 3,313,417,550.05 - Step 5: Solve for x
x = 3,313,417,550.05/74,159.62 - Step 6: Final answer
x = 44,679.54
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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.