Finding the Fourth Proportional to 77,997.50, 116,996.26 and 25,406.99
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Solution
The fourth proportional to 77,997.50, 116,996.26 and 25,406.99 is: 38,110.49
Step by Step Solution
- Step 1: Write the proportion equation
77,997.50 : 116,996.26 = 25,406.99 : x - Step 2: Convert to fraction form
77,997.50/116,996.26 = 25,406.99/x - Step 3: Cross multiply
77,997.50x = 116,996.26 × 25,406.99 - Step 4: Simplify right side
77,997.50x = 2,972,522,807.86 - Step 5: Solve for x
x = 2,972,522,807.86/77,997.50 - Step 6: Final answer
x = 38,110.49
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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.