Finding the Fourth Proportional to 87,814.95, 121,184.99 and 47,528.70
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Solution
The fourth proportional to 87,814.95, 121,184.99 and 47,528.70 is: 65,589.80
Step by Step Solution
- Step 1: Write the proportion equation
87,814.95 : 121,184.99 = 47,528.70 : x - Step 2: Convert to fraction form
87,814.95/121,184.99 = 47,528.70/x - Step 3: Cross multiply
87,814.95x = 121,184.99 × 47,528.70 - Step 4: Simplify right side
87,814.95x = 5,759,764,796.57 - Step 5: Solve for x
x = 5,759,764,796.57/87,814.95 - Step 6: Final answer
x = 65,589.80
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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.