Finding the Fourth Proportional to 73,171.36, 109,754.84 and 28,766.08
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Solution
The fourth proportional to 73,171.36, 109,754.84 and 28,766.08 is: 43,148.26
Step by Step Solution
- Step 1: Write the proportion equation
73,171.36 : 109,754.84 = 28,766.08 : x - Step 2: Convert to fraction form
73,171.36/109,754.84 = 28,766.08/x - Step 3: Cross multiply
73,171.36x = 109,754.84 × 28,766.08 - Step 4: Simplify right side
73,171.36x = 3,157,216,507.83 - Step 5: Solve for x
x = 3,157,216,507.83/73,171.36 - Step 6: Final answer
x = 43,148.26
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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.