Finding the Fourth Proportional to 87,246.40, 120,366.12 and 51,379.60
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Solution
The fourth proportional to 87,246.40, 120,366.12 and 51,379.60 is: 70,883.88
Step by Step Solution
- Step 1: Write the proportion equation
87,246.40 : 120,366.12 = 51,379.60 : x - Step 2: Convert to fraction form
87,246.40/120,366.12 = 51,379.60/x - Step 3: Cross multiply
87,246.40x = 120,366.12 × 51,379.60 - Step 4: Simplify right side
87,246.40x = 6,184,363,099.15 - Step 5: Solve for x
x = 6,184,363,099.15/87,246.40 - Step 6: Final answer
x = 70,883.88
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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.