Finding the Fourth Proportional to 87,937.44, 121,354.09 and 47,651.19
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Solution
The fourth proportional to 87,937.44, 121,354.09 and 47,651.19 is: 65,758.87
Step by Step Solution
- Step 1: Write the proportion equation
87,937.44 : 121,354.09 = 47,651.19 : x - Step 2: Convert to fraction form
87,937.44/121,354.09 = 47,651.19/x - Step 3: Cross multiply
87,937.44x = 121,354.09 × 47,651.19 - Step 4: Simplify right side
87,937.44x = 5,782,666,225.66 - Step 5: Solve for x
x = 5,782,666,225.66/87,937.44 - Step 6: Final answer
x = 65,758.87
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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.