Finding the Fourth Proportional to 75,113.25, 103,656.29 and 41,121.63
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Solution
The fourth proportional to 75,113.25, 103,656.29 and 41,121.63 is: 56,747.85
Step by Step Solution
- Step 1: Write the proportion equation
75,113.25 : 103,656.29 = 41,121.63 : x - Step 2: Convert to fraction form
75,113.25/103,656.29 = 41,121.63/x - Step 3: Cross multiply
75,113.25x = 103,656.29 × 41,121.63 - Step 4: Simplify right side
75,113.25x = 4,262,515,398.94 - Step 5: Solve for x
x = 4,262,515,398.94/75,113.25 - Step 6: Final answer
x = 56,747.85
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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.