Finding the Fourth Proportional to 75,649.20, 113,249.16 and 56,014.80
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Solution
The fourth proportional to 75,649.20, 113,249.16 and 56,014.80 is: 83,855.86
Step by Step Solution
- Step 1: Write the proportion equation
75,649.20 : 113,249.16 = 56,014.80 : x - Step 2: Convert to fraction form
75,649.20/113,249.16 = 56,014.80/x - Step 3: Cross multiply
75,649.20x = 113,249.16 × 56,014.80 - Step 4: Simplify right side
75,649.20x = 6,343,629,047.57 - Step 5: Solve for x
x = 6,343,629,047.57/75,649.20 - Step 6: Final answer
x = 83,855.86
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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.