Finding the Fourth Proportional to 78,380.99, 108,182.81 and 48,192.16
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Solution
The fourth proportional to 78,380.99, 108,182.81 and 48,192.16 is: 66,515.66
Step by Step Solution
- Step 1: Write the proportion equation
78,380.99 : 108,182.81 = 48,192.16 : x - Step 2: Convert to fraction form
78,380.99/108,182.81 = 48,192.16/x - Step 3: Cross multiply
78,380.99x = 108,182.81 × 48,192.16 - Step 4: Simplify right side
78,380.99x = 5,213,563,288.77 - Step 5: Solve for x
x = 5,213,563,288.77/78,380.99 - Step 6: Final answer
x = 66,515.66
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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.