Finding the Fourth Proportional to 83,877.80, 125,816.70 and 33,981.80
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Solution
The fourth proportional to 83,877.80, 125,816.70 and 33,981.80 is: 50,972.70
Step by Step Solution
- Step 1: Write the proportion equation
83,877.80 : 125,816.70 = 33,981.80 : x - Step 2: Convert to fraction form
83,877.80/125,816.70 = 33,981.80/x - Step 3: Cross multiply
83,877.80x = 125,816.70 × 33,981.80 - Step 4: Simplify right side
83,877.80x = 4,275,477,936.06 - Step 5: Solve for x
x = 4,275,477,936.06/83,877.80 - Step 6: Final answer
x = 50,972.70
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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.