Finding the Fourth Proportional to 83,400.84, 125,114.04 and 28,009.80
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Solution
The fourth proportional to 83,400.84, 125,114.04 and 28,009.80 is: 42,018.99
Step by Step Solution
- Step 1: Write the proportion equation
83,400.84 : 125,114.04 = 28,009.80 : x - Step 2: Convert to fraction form
83,400.84/125,114.04 = 28,009.80/x - Step 3: Cross multiply
83,400.84x = 125,114.04 × 28,009.80 - Step 4: Simplify right side
83,400.84x = 3,504,419,237.59 - Step 5: Solve for x
x = 3,504,419,237.59/83,400.84 - Step 6: Final answer
x = 42,018.99
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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.