Finding the Fourth Proportional to 74,809.44, 103,206.08 and 52,161.84
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Solution
The fourth proportional to 74,809.44, 103,206.08 and 52,161.84 is: 71,961.76
Step by Step Solution
- Step 1: Write the proportion equation
74,809.44 : 103,206.08 = 52,161.84 : x - Step 2: Convert to fraction form
74,809.44/103,206.08 = 52,161.84/x - Step 3: Cross multiply
74,809.44x = 103,206.08 × 52,161.84 - Step 4: Simplify right side
74,809.44x = 5,383,419,031.99 - Step 5: Solve for x
x = 5,383,419,031.99/74,809.44 - Step 6: Final answer
x = 71,961.76
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.