Finding the Fourth Proportional to 86,401.58, 119,234.70 and 48,163.55
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Solution
The fourth proportional to 86,401.58, 119,234.70 and 48,163.55 is: 66,465.99
Step by Step Solution
- Step 1: Write the proportion equation
86,401.58 : 119,234.70 = 48,163.55 : x - Step 2: Convert to fraction form
86,401.58/119,234.70 = 48,163.55/x - Step 3: Cross multiply
86,401.58x = 119,234.70 × 48,163.55 - Step 4: Simplify right side
86,401.58x = 5,742,765,839.01 - Step 5: Solve for x
x = 5,742,765,839.01/86,401.58 - Step 6: Final answer
x = 66,465.99
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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.