Finding the Fourth Proportional to 75,229.36, 103,843.48 and 51,338.96
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Solution
The fourth proportional to 75,229.36, 103,843.48 and 51,338.96 is: 70,866.17
Step by Step Solution
- Step 1: Write the proportion equation
75,229.36 : 103,843.48 = 51,338.96 : x - Step 2: Convert to fraction form
75,229.36/103,843.48 = 51,338.96/x - Step 3: Cross multiply
75,229.36x = 103,843.48 × 51,338.96 - Step 4: Simplify right side
75,229.36x = 5,331,216,265.98 - Step 5: Solve for x
x = 5,331,216,265.98/75,229.36 - Step 6: Final answer
x = 70,866.17
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1.5x scale
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.