Finding the Fourth Proportional to 77,240.58, 115,933.97 and 39,826.68
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Solution
The fourth proportional to 77,240.58, 115,933.97 and 39,826.68 is: 59,777.71
Step by Step Solution
- Step 1: Write the proportion equation
77,240.58 : 115,933.97 = 39,826.68 : x - Step 2: Convert to fraction form
77,240.58/115,933.97 = 39,826.68/x - Step 3: Cross multiply
77,240.58x = 115,933.97 × 39,826.68 - Step 4: Simplify right side
77,240.58x = 4,617,265,124.32 - Step 5: Solve for x
x = 4,617,265,124.32/77,240.58 - Step 6: Final answer
x = 59,777.71
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.