Finding the Fourth Proportional to 75,627.20, 113,325.60 and 63,876.80
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Solution
The fourth proportional to 75,627.20, 113,325.60 and 63,876.80 is: 95,717.90
Step by Step Solution
- Step 1: Write the proportion equation
75,627.20 : 113,325.60 = 63,876.80 : x - Step 2: Convert to fraction form
75,627.20/113,325.60 = 63,876.80/x - Step 3: Cross multiply
75,627.20x = 113,325.60 × 63,876.80 - Step 4: Simplify right side
75,627.20x = 7,238,876,686.08 - Step 5: Solve for x
x = 7,238,876,686.08/75,627.20 - Step 6: Final answer
x = 95,717.90
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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.