Finding the Fourth Proportional to 87,274.10, 120,437.99 and 50,982.65
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Solution
The fourth proportional to 87,274.10, 120,437.99 and 50,982.65 is: 70,355.90
Step by Step Solution
- Step 1: Write the proportion equation
87,274.10 : 120,437.99 = 50,982.65 : x - Step 2: Convert to fraction form
87,274.10/120,437.99 = 50,982.65/x - Step 3: Cross multiply
87,274.10x = 120,437.99 × 50,982.65 - Step 4: Simplify right side
87,274.10x = 6,140,247,890.87 - Step 5: Solve for x
x = 6,140,247,890.87/87,274.10 - Step 6: Final answer
x = 70,355.90
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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.