Finding the Fourth Proportional to 75,113.75, 103,656.98 and 41,122.13
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Solution
The fourth proportional to 75,113.75, 103,656.98 and 41,122.13 is: 56,748.54
Step by Step Solution
- Step 1: Write the proportion equation
75,113.75 : 103,656.98 = 41,122.13 : x - Step 2: Convert to fraction form
75,113.75/103,656.98 = 41,122.13/x - Step 3: Cross multiply
75,113.75x = 103,656.98 × 41,122.13 - Step 4: Simplify right side
75,113.75x = 4,262,595,806.97 - Step 5: Solve for x
x = 4,262,595,806.97/75,113.75 - Step 6: Final answer
x = 56,748.54
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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.