Finding the Fourth Proportional to 75,780.77, 104,575.05 and 41,790.68
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Solution
The fourth proportional to 75,780.77, 104,575.05 and 41,790.68 is: 57,669.82
Step by Step Solution
- Step 1: Write the proportion equation
75,780.77 : 104,575.05 = 41,790.68 : x - Step 2: Convert to fraction form
75,780.77/104,575.05 = 41,790.68/x - Step 3: Cross multiply
75,780.77x = 104,575.05 × 41,790.68 - Step 4: Simplify right side
75,780.77x = 4,370,262,908.05 - Step 5: Solve for x
x = 4,370,262,908.05/75,780.77 - Step 6: Final answer
x = 57,669.82
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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.