Finding the Fourth Proportional to 80,605.97, 120,862.21 and 27,280.23
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Solution
The fourth proportional to 80,605.97, 120,862.21 and 27,280.23 is: 40,904.52
Step by Step Solution
- Step 1: Write the proportion equation
80,605.97 : 120,862.21 = 27,280.23 : x - Step 2: Convert to fraction form
80,605.97/120,862.21 = 27,280.23/x - Step 3: Cross multiply
80,605.97x = 120,862.21 × 27,280.23 - Step 4: Simplify right side
80,605.97x = 3,297,148,887.11 - Step 5: Solve for x
x = 3,297,148,887.11/80,605.97 - Step 6: Final answer
x = 40,904.52
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1.5x scale
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.