Finding the Fourth Proportional to 75,378.28, 113,020.94 and 25,453.63
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Solution
The fourth proportional to 75,378.28, 113,020.94 and 25,453.63 is: 38,164.75
Step by Step Solution
- Step 1: Write the proportion equation
75,378.28 : 113,020.94 = 25,453.63 : x - Step 2: Convert to fraction form
75,378.28/113,020.94 = 25,453.63/x - Step 3: Cross multiply
75,378.28x = 113,020.94 × 25,453.63 - Step 4: Simplify right side
75,378.28x = 2,876,793,189.01 - Step 5: Solve for x
x = 2,876,793,189.01/75,378.28 - Step 6: Final answer
x = 38,164.75
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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.