Finding the Fourth Proportional to 75,101.22, 103,087.50 and 66,412.95
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Solution
The fourth proportional to 75,101.22, 103,087.50 and 66,412.95 is: 91,161.57
Step by Step Solution
- Step 1: Write the proportion equation
75,101.22 : 103,087.50 = 66,412.95 : x - Step 2: Convert to fraction form
75,101.22/103,087.50 = 66,412.95/x - Step 3: Cross multiply
75,101.22x = 103,087.50 × 66,412.95 - Step 4: Simplify right side
75,101.22x = 6,846,344,983.13 - Step 5: Solve for x
x = 6,846,344,983.13/75,101.22 - Step 6: Final answer
x = 91,161.57
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.