Finding the Fourth Proportional to 80,862.70, 121,294.05 and 49,240.30
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Solution
The fourth proportional to 80,862.70, 121,294.05 and 49,240.30 is: 73,860.45
Step by Step Solution
- Step 1: Write the proportion equation
80,862.70 : 121,294.05 = 49,240.30 : x - Step 2: Convert to fraction form
80,862.70/121,294.05 = 49,240.30/x - Step 3: Cross multiply
80,862.70x = 121,294.05 × 49,240.30 - Step 4: Simplify right side
80,862.70x = 5,972,555,410.22 - Step 5: Solve for x
x = 5,972,555,410.22/80,862.70 - Step 6: Final answer
x = 73,860.45
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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.