Finding the Fourth Proportional to 87,888.06, 131,849.10 and 28,707.84
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Solution
The fourth proportional to 87,888.06, 131,849.10 and 28,707.84 is: 43,067.32
Step by Step Solution
- Step 1: Write the proportion equation
87,888.06 : 131,849.10 = 28,707.84 : x - Step 2: Convert to fraction form
87,888.06/131,849.10 = 28,707.84/x - Step 3: Cross multiply
87,888.06x = 131,849.10 × 28,707.84 - Step 4: Simplify right side
87,888.06x = 3,785,102,866.94 - Step 5: Solve for x
x = 3,785,102,866.94/87,888.06 - Step 6: Final answer
x = 43,067.32
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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.