Finding the Fourth Proportional to 75,811.35, 104,611.29 and 43,974.09
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Solution
The fourth proportional to 75,811.35, 104,611.29 and 43,974.09 is: 60,679.39
Step by Step Solution
- Step 1: Write the proportion equation
75,811.35 : 104,611.29 = 43,974.09 : x - Step 2: Convert to fraction form
75,811.35/104,611.29 = 43,974.09/x - Step 3: Cross multiply
75,811.35x = 104,611.29 × 43,974.09 - Step 4: Simplify right side
75,811.35x = 4,600,186,281.48 - Step 5: Solve for x
x = 4,600,186,281.48/75,811.35 - Step 6: Final answer
x = 60,679.39
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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.