Finding the Fourth Proportional to 75,563.68, 113,390.07 and 28,212.70
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Solution
The fourth proportional to 75,563.68, 113,390.07 and 28,212.70 is: 42,335.68
Step by Step Solution
- Step 1: Write the proportion equation
75,563.68 : 113,390.07 = 28,212.70 : x - Step 2: Convert to fraction form
75,563.68/113,390.07 = 28,212.70/x - Step 3: Cross multiply
75,563.68x = 113,390.07 × 28,212.70 - Step 4: Simplify right side
75,563.68x = 3,199,040,027.89 - Step 5: Solve for x
x = 3,199,040,027.89/75,563.68 - Step 6: Final answer
x = 42,335.68
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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.