Finding the Fourth Proportional to 83,798.70, 115,635.36 and 49,337.99
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Solution
The fourth proportional to 83,798.70, 115,635.36 and 49,337.99 is: 68,082.40
Step by Step Solution
- Step 1: Write the proportion equation
83,798.70 : 115,635.36 = 49,337.99 : x - Step 2: Convert to fraction form
83,798.70/115,635.36 = 49,337.99/x - Step 3: Cross multiply
83,798.70x = 115,635.36 × 49,337.99 - Step 4: Simplify right side
83,798.70x = 5,705,216,235.33 - Step 5: Solve for x
x = 5,705,216,235.33/83,798.70 - Step 6: Final answer
x = 68,082.40
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.