Finding the Fourth Proportional to 79,729.99, 110,026.87 and 43,919.17
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Solution
The fourth proportional to 79,729.99, 110,026.87 and 43,919.17 is: 60,608.17
Step by Step Solution
- Step 1: Write the proportion equation
79,729.99 : 110,026.87 = 43,919.17 : x - Step 2: Convert to fraction form
79,729.99/110,026.87 = 43,919.17/x - Step 3: Cross multiply
79,729.99x = 110,026.87 × 43,919.17 - Step 4: Simplify right side
79,729.99x = 4,832,288,808.10 - Step 5: Solve for x
x = 4,832,288,808.10/79,729.99 - Step 6: Final answer
x = 60,608.17
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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.