Finding the Fourth Proportional to 67,621.74, 101,441.84 and 28,169.63
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Solution
The fourth proportional to 67,621.74, 101,441.84 and 28,169.63 is: 42,258.28
Step by Step Solution
- Step 1: Write the proportion equation
67,621.74 : 101,441.84 = 28,169.63 : x - Step 2: Convert to fraction form
67,621.74/101,441.84 = 28,169.63/x - Step 3: Cross multiply
67,621.74x = 101,441.84 × 28,169.63 - Step 4: Simplify right side
67,621.74x = 2,857,578,451.26 - Step 5: Solve for x
x = 2,857,578,451.26/67,621.74 - Step 6: Final answer
x = 42,258.28
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.