Finding the Fourth Proportional to 79,939.44, 110,315.07 and 44,128.53
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Solution
The fourth proportional to 79,939.44, 110,315.07 and 44,128.53 is: 60,896.62
Step by Step Solution
- Step 1: Write the proportion equation
79,939.44 : 110,315.07 = 44,128.53 : x - Step 2: Convert to fraction form
79,939.44/110,315.07 = 44,128.53/x - Step 3: Cross multiply
79,939.44x = 110,315.07 × 44,128.53 - Step 4: Simplify right side
79,939.44x = 4,868,041,875.95 - Step 5: Solve for x
x = 4,868,041,875.95/79,939.44 - Step 6: Final answer
x = 60,896.62
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.