Finding the Fourth Proportional to 85,605.70, 118,132.41 and 49,796.74
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Solution
The fourth proportional to 85,605.70, 118,132.41 and 49,796.74 is: 68,717.49
Step by Step Solution
- Step 1: Write the proportion equation
85,605.70 : 118,132.41 = 49,796.74 : x - Step 2: Convert to fraction form
85,605.70/118,132.41 = 49,796.74/x - Step 3: Cross multiply
85,605.70x = 118,132.41 × 49,796.74 - Step 4: Simplify right side
85,605.70x = 5,882,608,906.34 - Step 5: Solve for x
x = 5,882,608,906.34/85,605.70 - Step 6: Final answer
x = 68,717.49
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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.