Finding the Fourth Proportional to 79,938.51, 110,315.41 and 44,128.44
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Solution
The fourth proportional to 79,938.51, 110,315.41 and 44,128.44 is: 60,897.39
Step by Step Solution
- Step 1: Write the proportion equation
79,938.51 : 110,315.41 = 44,128.44 : x - Step 2: Convert to fraction form
79,938.51/110,315.41 = 44,128.44/x - Step 3: Cross multiply
79,938.51x = 110,315.41 × 44,128.44 - Step 4: Simplify right side
79,938.51x = 4,868,046,951.26 - Step 5: Solve for x
x = 4,868,046,951.26/79,938.51 - Step 6: Final answer
x = 60,897.39
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1.5x scale
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.