Finding the Fourth Proportional to 75,649.14, 113,543.78 and 38,235.65
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Solution
The fourth proportional to 75,649.14, 113,543.78 and 38,235.65 is: 57,388.88
Step by Step Solution
- Step 1: Write the proportion equation
75,649.14 : 113,543.78 = 38,235.65 : x - Step 2: Convert to fraction form
75,649.14/113,543.78 = 38,235.65/x - Step 3: Cross multiply
75,649.14x = 113,543.78 × 38,235.65 - Step 4: Simplify right side
75,649.14x = 4,341,419,472.86 - Step 5: Solve for x
x = 4,341,419,472.86/75,649.14 - Step 6: Final answer
x = 57,388.88
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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.