Finding the Fourth Proportional to 87,226.43, 120,378.86 and 48,988.23
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Solution
The fourth proportional to 87,226.43, 120,378.86 and 48,988.23 is: 67,607.35
Step by Step Solution
- Step 1: Write the proportion equation
87,226.43 : 120,378.86 = 48,988.23 : x - Step 2: Convert to fraction form
87,226.43/120,378.86 = 48,988.23/x - Step 3: Cross multiply
87,226.43x = 120,378.86 × 48,988.23 - Step 4: Simplify right side
87,226.43x = 5,897,147,035.88 - Step 5: Solve for x
x = 5,897,147,035.88/87,226.43 - Step 6: Final answer
x = 67,607.35
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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.