Finding the Fourth Proportional to 72,493.50, 100,040.82 and 40,232.99
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Solution
The fourth proportional to 72,493.50, 100,040.82 and 40,232.99 is: 55,521.41
Step by Step Solution
- Step 1: Write the proportion equation
72,493.50 : 100,040.82 = 40,232.99 : x - Step 2: Convert to fraction form
72,493.50/100,040.82 = 40,232.99/x - Step 3: Cross multiply
72,493.50x = 100,040.82 × 40,232.99 - Step 4: Simplify right side
72,493.50x = 4,024,941,560.75 - Step 5: Solve for x
x = 4,024,941,560.75/72,493.50 - Step 6: Final answer
x = 55,521.41
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1.5x scale
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.