Finding the Fourth Proportional to 84,721.68, 116,929.88 and 47,008.08
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Solution
The fourth proportional to 84,721.68, 116,929.88 and 47,008.08 is: 64,878.90
Step by Step Solution
- Step 1: Write the proportion equation
84,721.68 : 116,929.88 = 47,008.08 : x - Step 2: Convert to fraction form
84,721.68/116,929.88 = 47,008.08/x - Step 3: Cross multiply
84,721.68x = 116,929.88 × 47,008.08 - Step 4: Simplify right side
84,721.68x = 5,496,649,153.43 - Step 5: Solve for x
x = 5,496,649,153.43/84,721.68 - Step 6: Final answer
x = 64,878.90
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.