Finding the Fourth Proportional to 81,669.87, 122,508.99 and 22,504.23
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Solution
The fourth proportional to 81,669.87, 122,508.99 and 22,504.23 is: 33,757.50
Step by Step Solution
- Step 1: Write the proportion equation
81,669.87 : 122,508.99 = 22,504.23 : x - Step 2: Convert to fraction form
81,669.87/122,508.99 = 22,504.23/x - Step 3: Cross multiply
81,669.87x = 122,508.99 × 22,504.23 - Step 4: Simplify right side
81,669.87x = 2,756,970,488.03 - Step 5: Solve for x
x = 2,756,970,488.03/81,669.87 - Step 6: Final answer
x = 33,757.50
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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.