Finding the Fourth Proportional to 71,625.63, 107,438.33 and 19,035.12
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Solution
The fourth proportional to 71,625.63, 107,438.33 and 19,035.12 is: 28,552.65
Step by Step Solution
- Step 1: Write the proportion equation
71,625.63 : 107,438.33 = 19,035.12 : x - Step 2: Convert to fraction form
71,625.63/107,438.33 = 19,035.12/x - Step 3: Cross multiply
71,625.63x = 107,438.33 × 19,035.12 - Step 4: Simplify right side
71,625.63x = 2,045,101,408.97 - Step 5: Solve for x
x = 2,045,101,408.97/71,625.63 - Step 6: Final answer
x = 28,552.65
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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.