Finding the Fourth Proportional to 75,116.07, 103,660.21 and 41,126.76
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Solution
The fourth proportional to 75,116.07, 103,660.21 and 41,126.76 is: 56,754.95
Step by Step Solution
- Step 1: Write the proportion equation
75,116.07 : 103,660.21 = 41,126.76 : x - Step 2: Convert to fraction form
75,116.07/103,660.21 = 41,126.76/x - Step 3: Cross multiply
75,116.07x = 103,660.21 × 41,126.76 - Step 4: Simplify right side
75,116.07x = 4,263,208,578.22 - Step 5: Solve for x
x = 4,263,208,578.22/75,116.07 - Step 6: Final answer
x = 56,754.95
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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.