Finding the Fourth Proportional to 77,995.50, 116,993.26 and 25,404.99
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Solution
The fourth proportional to 77,995.50, 116,993.26 and 25,404.99 is: 38,107.49
Step by Step Solution
- Step 1: Write the proportion equation
77,995.50 : 116,993.26 = 25,404.99 : x - Step 2: Convert to fraction form
77,995.50/116,993.26 = 25,404.99/x - Step 3: Cross multiply
77,995.50x = 116,993.26 × 25,404.99 - Step 4: Simplify right side
77,995.50x = 2,972,212,600.37 - Step 5: Solve for x
x = 2,972,212,600.37/77,995.50 - Step 6: Final answer
x = 38,107.49
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Double scale
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Similar ratio
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1.5x scale
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.