Finding the Fourth Proportional to 75,127.40, 112,524.99 and 51,378.66
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Solution
The fourth proportional to 75,127.40, 112,524.99 and 51,378.66 is: 76,954.39
Step by Step Solution
- Step 1: Write the proportion equation
75,127.40 : 112,524.99 = 51,378.66 : x - Step 2: Convert to fraction form
75,127.40/112,524.99 = 51,378.66/x - Step 3: Cross multiply
75,127.40x = 112,524.99 × 51,378.66 - Step 4: Simplify right side
75,127.40x = 5,781,383,202.71 - Step 5: Solve for x
x = 5,781,383,202.71/75,127.40 - Step 6: Final answer
x = 76,954.39
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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.