Finding the Fourth Proportional to 72,959.10, 100,685.11 and 41,127.99
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Solution
The fourth proportional to 72,959.10, 100,685.11 and 41,127.99 is: 56,757.50
Step by Step Solution
- Step 1: Write the proportion equation
72,959.10 : 100,685.11 = 41,127.99 : x - Step 2: Convert to fraction form
72,959.10/100,685.11 = 41,127.99/x - Step 3: Cross multiply
72,959.10x = 100,685.11 × 41,127.99 - Step 4: Simplify right side
72,959.10x = 4,140,976,197.23 - Step 5: Solve for x
x = 4,140,976,197.23/72,959.10 - Step 6: Final answer
x = 56,757.50
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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.