Finding the Fourth Proportional to 73,422.75, 101,323.49 and 39,888.75
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Solution
The fourth proportional to 73,422.75, 101,323.49 and 39,888.75 is: 55,046.53
Step by Step Solution
- Step 1: Write the proportion equation
73,422.75 : 101,323.49 = 39,888.75 : x - Step 2: Convert to fraction form
73,422.75/101,323.49 = 39,888.75/x - Step 3: Cross multiply
73,422.75x = 101,323.49 × 39,888.75 - Step 4: Simplify right side
73,422.75x = 4,041,667,361.74 - Step 5: Solve for x
x = 4,041,667,361.74/73,422.75 - Step 6: Final answer
x = 55,046.53
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1.5x scale
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.