Finding the Fourth Proportional to 87,968.46, 121,396.69 and 47,682.18
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Solution
The fourth proportional to 87,968.46, 121,396.69 and 47,682.18 is: 65,801.53
Step by Step Solution
- Step 1: Write the proportion equation
87,968.46 : 121,396.69 = 47,682.18 : x - Step 2: Convert to fraction form
87,968.46/121,396.69 = 47,682.18/x - Step 3: Cross multiply
87,968.46x = 121,396.69 × 47,682.18 - Step 4: Simplify right side
87,968.46x = 5,788,458,823.98 - Step 5: Solve for x
x = 5,788,458,823.98/87,968.46 - Step 6: Final answer
x = 65,801.53
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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.