Finding the Fourth Proportional to 71,973.90, 107,739.41 and 46,960.09
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Solution
The fourth proportional to 71,973.90, 107,739.41 and 46,960.09 is: 70,295.65
Step by Step Solution
- Step 1: Write the proportion equation
71,973.90 : 107,739.41 = 46,960.09 : x - Step 2: Convert to fraction form
71,973.90/107,739.41 = 46,960.09/x - Step 3: Cross multiply
71,973.90x = 107,739.41 × 46,960.09 - Step 4: Simplify right side
71,973.90x = 5,059,452,390.15 - Step 5: Solve for x
x = 5,059,452,390.15/71,973.90 - Step 6: Final answer
x = 70,295.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.