Finding the Fourth Proportional to 75,884.72, 113,731.37 and 38,454.21
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Solution
The fourth proportional to 75,884.72, 113,731.37 and 38,454.21 is: 57,632.82
Step by Step Solution
- Step 1: Write the proportion equation
75,884.72 : 113,731.37 = 38,454.21 : x - Step 2: Convert to fraction form
75,884.72/113,731.37 = 38,454.21/x - Step 3: Cross multiply
75,884.72x = 113,731.37 × 38,454.21 - Step 4: Simplify right side
75,884.72x = 4,373,449,793.30 - Step 5: Solve for x
x = 4,373,449,793.30/75,884.72 - Step 6: Final answer
x = 57,632.82
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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.