Finding the Fourth Proportional to 87,889.38, 121,294.85 and 49,655.99
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Solution
The fourth proportional to 87,889.38, 121,294.85 and 49,655.99 is: 68,529.50
Step by Step Solution
- Step 1: Write the proportion equation
87,889.38 : 121,294.85 = 49,655.99 : x - Step 2: Convert to fraction form
87,889.38/121,294.85 = 49,655.99/x - Step 3: Cross multiply
87,889.38x = 121,294.85 × 49,655.99 - Step 4: Simplify right side
87,889.38x = 6,023,015,003.90 - Step 5: Solve for x
x = 6,023,015,003.90/87,889.38 - Step 6: Final answer
x = 68,529.50
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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.