Finding the Fourth Proportional to 75,207.88, 112,811.82 and 38,297.80
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Solution
The fourth proportional to 75,207.88, 112,811.82 and 38,297.80 is: 57,446.70
Step by Step Solution
- Step 1: Write the proportion equation
75,207.88 : 112,811.82 = 38,297.80 : x - Step 2: Convert to fraction form
75,207.88/112,811.82 = 38,297.80/x - Step 3: Cross multiply
75,207.88x = 112,811.82 × 38,297.80 - Step 4: Simplify right side
75,207.88x = 4,320,444,520.00 - Step 5: Solve for x
x = 4,320,444,520.00/75,207.88 - Step 6: Final answer
x = 57,446.70
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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.