Finding the Fourth Proportional to 87,820.08, 121,190.88 and 47,533.44
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Solution
The fourth proportional to 87,820.08, 121,190.88 and 47,533.44 is: 65,595.70
Step by Step Solution
- Step 1: Write the proportion equation
87,820.08 : 121,190.88 = 47,533.44 : x - Step 2: Convert to fraction form
87,820.08/121,190.88 = 47,533.44/x - Step 3: Cross multiply
87,820.08x = 121,190.88 × 47,533.44 - Step 4: Simplify right side
87,820.08x = 5,760,619,423.03 - Step 5: Solve for x
x = 5,760,619,423.03/87,820.08 - Step 6: Final answer
x = 65,595.70
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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.