Finding the Fourth Proportional to 77,994.50, 116,991.76 and 25,403.99
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Solution
The fourth proportional to 77,994.50, 116,991.76 and 25,403.99 is: 38,105.98
Step by Step Solution
- Step 1: Write the proportion equation
77,994.50 : 116,991.76 = 25,403.99 : x - Step 2: Convert to fraction form
77,994.50/116,991.76 = 25,403.99/x - Step 3: Cross multiply
77,994.50x = 116,991.76 × 25,403.99 - Step 4: Simplify right side
77,994.50x = 2,972,056,852.65 - Step 5: Solve for x
x = 2,972,056,852.65/77,994.50 - Step 6: Final answer
x = 38,105.98
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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.