Finding the Fourth Proportional to 72,721.26, 100,246.95 and 44,407.98
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Solution
The fourth proportional to 72,721.26, 100,246.95 and 44,407.98 is: 61,216.82
Step by Step Solution
- Step 1: Write the proportion equation
72,721.26 : 100,246.95 = 44,407.98 : x - Step 2: Convert to fraction form
72,721.26/100,246.95 = 44,407.98/x - Step 3: Cross multiply
72,721.26x = 100,246.95 × 44,407.98 - Step 4: Simplify right side
72,721.26x = 4,451,764,550.66 - Step 5: Solve for x
x = 4,451,764,550.66/72,721.26 - Step 6: Final answer
x = 61,216.82
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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.