Finding the Fourth Proportional to 87,593.20, 120,878.74 and 49,867.44
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Solution
The fourth proportional to 87,593.20, 120,878.74 and 49,867.44 is: 68,817.14
Step by Step Solution
- Step 1: Write the proportion equation
87,593.20 : 120,878.74 = 49,867.44 : x - Step 2: Convert to fraction form
87,593.20/120,878.74 = 49,867.44/x - Step 3: Cross multiply
87,593.20x = 120,878.74 × 49,867.44 - Step 4: Simplify right side
87,593.20x = 6,027,913,314.23 - Step 5: Solve for x
x = 6,027,913,314.23/87,593.20 - Step 6: Final answer
x = 68,817.14
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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.