Finding the Fourth Proportional to 87,885.53, 121,284.11 and 50,163.29
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Solution
The fourth proportional to 87,885.53, 121,284.11 and 50,163.29 is: 69,226.52
Step by Step Solution
- Step 1: Write the proportion equation
87,885.53 : 121,284.11 = 50,163.29 : x - Step 2: Convert to fraction form
87,885.53/121,284.11 = 50,163.29/x - Step 3: Cross multiply
87,885.53x = 121,284.11 × 50,163.29 - Step 4: Simplify right side
87,885.53x = 6,084,009,731.51 - Step 5: Solve for x
x = 6,084,009,731.51/87,885.53 - Step 6: Final answer
x = 69,226.52
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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.