Finding the Fourth Proportional to 75,290.13, 103,888.58 and 43,453.08
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Solution
The fourth proportional to 75,290.13, 103,888.58 and 43,453.08 is: 59,958.44
Step by Step Solution
- Step 1: Write the proportion equation
75,290.13 : 103,888.58 = 43,453.08 : x - Step 2: Convert to fraction form
75,290.13/103,888.58 = 43,453.08/x - Step 3: Cross multiply
75,290.13x = 103,888.58 × 43,453.08 - Step 4: Simplify right side
75,290.13x = 4,514,278,560.56 - Step 5: Solve for x
x = 4,514,278,560.56/75,290.13 - Step 6: Final answer
x = 59,958.44
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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.