Finding the Fourth Proportional to 79,939.93, 110,315.78 and 44,129.02
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Solution
The fourth proportional to 79,939.93, 110,315.78 and 44,129.02 is: 60,897.32
Step by Step Solution
- Step 1: Write the proportion equation
79,939.93 : 110,315.78 = 44,129.02 : x - Step 2: Convert to fraction form
79,939.93/110,315.78 = 44,129.02/x - Step 3: Cross multiply
79,939.93x = 110,315.78 × 44,129.02 - Step 4: Simplify right side
79,939.93x = 4,868,127,261.94 - Step 5: Solve for x
x = 4,868,127,261.94/79,939.93 - Step 6: Final answer
x = 60,897.32
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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.