Finding the Fourth Proportional to 85,628.44, 128,410.71 and 29,452.65
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Solution
The fourth proportional to 85,628.44, 128,410.71 and 29,452.65 is: 44,167.99
Step by Step Solution
- Step 1: Write the proportion equation
85,628.44 : 128,410.71 = 29,452.65 : x - Step 2: Convert to fraction form
85,628.44/128,410.71 = 29,452.65/x - Step 3: Cross multiply
85,628.44x = 128,410.71 × 29,452.65 - Step 4: Simplify right side
85,628.44x = 3,782,035,697.88 - Step 5: Solve for x
x = 3,782,035,697.88/85,628.44 - Step 6: Final answer
x = 44,167.99
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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.