Finding the Fourth Proportional to 66,908.99, 100,331.70 and 38,837.70
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Solution
The fourth proportional to 66,908.99, 100,331.70 and 38,837.70 is: 58,238.11
Step by Step Solution
- Step 1: Write the proportion equation
66,908.99 : 100,331.70 = 38,837.70 : x - Step 2: Convert to fraction form
66,908.99/100,331.70 = 38,837.70/x - Step 3: Cross multiply
66,908.99x = 100,331.70 × 38,837.70 - Step 4: Simplify right side
66,908.99x = 3,896,652,765.48 - Step 5: Solve for x
x = 3,896,652,765.48/66,908.99 - Step 6: Final answer
x = 58,238.11
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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.