Finding the Fourth Proportional to 75,648.24, 113,542.38 and 38,234.70
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Solution
The fourth proportional to 75,648.24, 113,542.38 and 38,234.70 is: 57,387.44
Step by Step Solution
- Step 1: Write the proportion equation
75,648.24 : 113,542.38 = 38,234.70 : x - Step 2: Convert to fraction form
75,648.24/113,542.38 = 38,234.70/x - Step 3: Cross multiply
75,648.24x = 113,542.38 × 38,234.70 - Step 4: Simplify right side
75,648.24x = 4,341,258,836.59 - Step 5: Solve for x
x = 4,341,258,836.59/75,648.24 - Step 6: Final answer
x = 57,387.44
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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.