Finding the Fourth Proportional to 74,159.68, 111,239.45 and 29,786.44
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Solution
The fourth proportional to 74,159.68, 111,239.45 and 29,786.44 is: 44,679.63
Step by Step Solution
- Step 1: Write the proportion equation
74,159.68 : 111,239.45 = 29,786.44 : x - Step 2: Convert to fraction form
74,159.68/111,239.45 = 29,786.44/x - Step 3: Cross multiply
74,159.68x = 111,239.45 × 29,786.44 - Step 4: Simplify right side
74,159.68x = 3,313,426,887.73 - Step 5: Solve for x
x = 3,313,426,887.73/74,159.68 - Step 6: Final answer
x = 44,679.63
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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.