Finding the Fourth Proportional to 74,322.12, 111,481.80 and 29,947.68
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Solution
The fourth proportional to 74,322.12, 111,481.80 and 29,947.68 is: 44,920.96
Step by Step Solution
- Step 1: Write the proportion equation
74,322.12 : 111,481.80 = 29,947.68 : x - Step 2: Convert to fraction form
74,322.12/111,481.80 = 29,947.68/x - Step 3: Cross multiply
74,322.12x = 111,481.80 × 29,947.68 - Step 4: Simplify right side
74,322.12x = 3,338,621,272.22 - Step 5: Solve for x
x = 3,338,621,272.22/74,322.12 - Step 6: Final answer
x = 44,920.96
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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.