Finding the Fourth Proportional to 83,844.74, 115,705.17 and 47,553.09
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Solution
The fourth proportional to 83,844.74, 115,705.17 and 47,553.09 is: 65,622.94
Step by Step Solution
- Step 1: Write the proportion equation
83,844.74 : 115,705.17 = 47,553.09 : x - Step 2: Convert to fraction form
83,844.74/115,705.17 = 47,553.09/x - Step 3: Cross multiply
83,844.74x = 115,705.17 × 47,553.09 - Step 4: Simplify right side
83,844.74x = 5,502,138,362.48 - Step 5: Solve for x
x = 5,502,138,362.48/83,844.74 - Step 6: Final answer
x = 65,622.94
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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.