Finding the Fourth Proportional to 83,939.98, 115,837.87 and 45,699.79
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Solution
The fourth proportional to 83,939.98, 115,837.87 and 45,699.79 is: 63,066.09
Step by Step Solution
- Step 1: Write the proportion equation
83,939.98 : 115,837.87 = 45,699.79 : x - Step 2: Convert to fraction form
83,939.98/115,837.87 = 45,699.79/x - Step 3: Cross multiply
83,939.98x = 115,837.87 × 45,699.79 - Step 4: Simplify right side
83,939.98x = 5,293,766,333.05 - Step 5: Solve for x
x = 5,293,766,333.05/83,939.98 - Step 6: Final answer
x = 63,066.09
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1.5x scale
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.