Finding the Fourth Proportional to 87,489.44, 120,739.35 and 49,262.13
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Solution
The fourth proportional to 87,489.44, 120,739.35 and 49,262.13 is: 67,983.95
Step by Step Solution
- Step 1: Write the proportion equation
87,489.44 : 120,739.35 = 49,262.13 : x - Step 2: Convert to fraction form
87,489.44/120,739.35 = 49,262.13/x - Step 3: Cross multiply
87,489.44x = 120,739.35 × 49,262.13 - Step 4: Simplify right side
87,489.44x = 5,947,877,555.82 - Step 5: Solve for x
x = 5,947,877,555.82/87,489.44 - Step 6: Final answer
x = 67,983.95
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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.