Finding the Fourth Proportional to 73,543.20, 110,314.80 and 29,147.10
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Solution
The fourth proportional to 73,543.20, 110,314.80 and 29,147.10 is: 43,720.65
Step by Step Solution
- Step 1: Write the proportion equation
73,543.20 : 110,314.80 = 29,147.10 : x - Step 2: Convert to fraction form
73,543.20/110,314.80 = 29,147.10/x - Step 3: Cross multiply
73,543.20x = 110,314.80 × 29,147.10 - Step 4: Simplify right side
73,543.20x = 3,215,356,507.08 - Step 5: Solve for x
x = 3,215,356,507.08/73,543.20 - Step 6: Final answer
x = 43,720.65
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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.