Finding the Fourth Proportional to 72,744.99, 100,393.92 and 40,911.99
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Solution
The fourth proportional to 72,744.99, 100,393.92 and 40,911.99 is: 56,461.83
Step by Step Solution
- Step 1: Write the proportion equation
72,744.99 : 100,393.92 = 40,911.99 : x - Step 2: Convert to fraction form
72,744.99/100,393.92 = 40,911.99/x - Step 3: Cross multiply
72,744.99x = 100,393.92 × 40,911.99 - Step 4: Simplify right side
72,744.99x = 4,107,315,051.10 - Step 5: Solve for x
x = 4,107,315,051.10/72,744.99 - Step 6: Final answer
x = 56,461.83
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.