Finding the Fourth Proportional to 87,624.84, 120,922.20 and 47,880.84
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Solution
The fourth proportional to 87,624.84, 120,922.20 and 47,880.84 is: 66,075.52
Step by Step Solution
- Step 1: Write the proportion equation
87,624.84 : 120,922.20 = 47,880.84 : x - Step 2: Convert to fraction form
87,624.84/120,922.20 = 47,880.84/x - Step 3: Cross multiply
87,624.84x = 120,922.20 × 47,880.84 - Step 4: Simplify right side
87,624.84x = 5,789,856,510.65 - Step 5: Solve for x
x = 5,789,856,510.65/87,624.84 - Step 6: Final answer
x = 66,075.52
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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.