Finding the Fourth Proportional to 83,896.98, 115,780.27 and 45,658.99
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Solution
The fourth proportional to 83,896.98, 115,780.27 and 45,658.99 is: 63,010.73
Step by Step Solution
- Step 1: Write the proportion equation
83,896.98 : 115,780.27 = 45,658.99 : x - Step 2: Convert to fraction form
83,896.98/115,780.27 = 45,658.99/x - Step 3: Cross multiply
83,896.98x = 115,780.27 × 45,658.99 - Step 4: Simplify right side
83,896.98x = 5,286,410,306.32 - Step 5: Solve for x
x = 5,286,410,306.32/83,896.98 - Step 6: Final answer
x = 63,010.73
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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.