Finding the Fourth Proportional to 87,898.24, 121,299.55 and 47,611.68
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Solution
The fourth proportional to 87,898.24, 121,299.55 and 47,611.68 is: 65,704.11
Step by Step Solution
- Step 1: Write the proportion equation
87,898.24 : 121,299.55 = 47,611.68 : x - Step 2: Convert to fraction form
87,898.24/121,299.55 = 47,611.68/x - Step 3: Cross multiply
87,898.24x = 121,299.55 × 47,611.68 - Step 4: Simplify right side
87,898.24x = 5,775,275,358.74 - Step 5: Solve for x
x = 5,775,275,358.74/87,898.24 - Step 6: Final answer
x = 65,704.11
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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.