Finding the Fourth Proportional to 71,228.76, 106,832.16 and 29,107.32
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Solution
The fourth proportional to 71,228.76, 106,832.16 and 29,107.32 is: 43,656.49
Step by Step Solution
- Step 1: Write the proportion equation
71,228.76 : 106,832.16 = 29,107.32 : x - Step 2: Convert to fraction form
71,228.76/106,832.16 = 29,107.32/x - Step 3: Cross multiply
71,228.76x = 106,832.16 × 29,107.32 - Step 4: Simplify right side
71,228.76x = 3,109,597,867.41 - Step 5: Solve for x
x = 3,109,597,867.41/71,228.76 - Step 6: Final answer
x = 43,656.49
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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.