Finding the Fourth Proportional to 75,113.76, 103,656.10 and 41,121.84
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Solution
The fourth proportional to 75,113.76, 103,656.10 and 41,121.84 is: 56,747.65
Step by Step Solution
- Step 1: Write the proportion equation
75,113.76 : 103,656.10 = 41,121.84 : x - Step 2: Convert to fraction form
75,113.76/103,656.10 = 41,121.84/x - Step 3: Cross multiply
75,113.76x = 103,656.10 × 41,121.84 - Step 4: Simplify right side
75,113.76x = 4,262,529,559.22 - Step 5: Solve for x
x = 4,262,529,559.22/75,113.76 - Step 6: Final answer
x = 56,747.65
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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.