Finding the Fourth Proportional to 85,857.99, 128,808.86 and 26,694.15
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Solution
The fourth proportional to 85,857.99, 128,808.86 and 26,694.15 is: 40,048.02
Step by Step Solution
- Step 1: Write the proportion equation
85,857.99 : 128,808.86 = 26,694.15 : x - Step 2: Convert to fraction form
85,857.99/128,808.86 = 26,694.15/x - Step 3: Cross multiply
85,857.99x = 128,808.86 × 26,694.15 - Step 4: Simplify right side
85,857.99x = 3,438,442,896.70 - Step 5: Solve for x
x = 3,438,442,896.70/85,857.99 - Step 6: Final answer
x = 40,048.02
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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.