Finding the Fourth Proportional to 75,302.77, 112,338.97 and 69,933.68
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Solution
The fourth proportional to 75,302.77, 112,338.97 and 69,933.68 is: 104,329.20
Step by Step Solution
- Step 1: Write the proportion equation
75,302.77 : 112,338.97 = 69,933.68 : x - Step 2: Convert to fraction form
75,302.77/112,338.97 = 69,933.68/x - Step 3: Cross multiply
75,302.77x = 112,338.97 × 69,933.68 - Step 4: Simplify right side
75,302.77x = 7,856,277,579.51 - Step 5: Solve for x
x = 7,856,277,579.51/75,302.77 - Step 6: Final answer
x = 104,329.20
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.