Finding the Fourth Proportional to 84,877.28, 127,316.28 and 28,717.84
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Solution
The fourth proportional to 84,877.28, 127,316.28 and 28,717.84 is: 43,076.88
Step by Step Solution
- Step 1: Write the proportion equation
84,877.28 : 127,316.28 = 28,717.84 : x - Step 2: Convert to fraction form
84,877.28/127,316.28 = 28,717.84/x - Step 3: Cross multiply
84,877.28x = 127,316.28 × 28,717.84 - Step 4: Simplify right side
84,877.28x = 3,656,248,558.44 - Step 5: Solve for x
x = 3,656,248,558.44/84,877.28 - Step 6: Final answer
x = 43,076.88
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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.