Finding the Fourth Proportional to 75,074.24, 103,687.49 and 51,159.40
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Solution
The fourth proportional to 75,074.24, 103,687.49 and 51,159.40 is: 70,657.92
Step by Step Solution
- Step 1: Write the proportion equation
75,074.24 : 103,687.49 = 51,159.40 : x - Step 2: Convert to fraction form
75,074.24/103,687.49 = 51,159.40/x - Step 3: Cross multiply
75,074.24x = 103,687.49 × 51,159.40 - Step 4: Simplify right side
75,074.24x = 5,304,589,775.91 - Step 5: Solve for x
x = 5,304,589,775.91/75,074.24 - Step 6: Final answer
x = 70,657.92
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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.