Finding the Fourth Proportional to 73,888.74, 101,971.66 and 42,057.62
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Solution
The fourth proportional to 73,888.74, 101,971.66 and 42,057.62 is: 58,042.47
Step by Step Solution
- Step 1: Write the proportion equation
73,888.74 : 101,971.66 = 42,057.62 : x - Step 2: Convert to fraction form
73,888.74/101,971.66 = 42,057.62/x - Step 3: Cross multiply
73,888.74x = 101,971.66 × 42,057.62 - Step 4: Simplify right side
73,888.74x = 4,288,685,327.05 - Step 5: Solve for x
x = 4,288,685,327.05/73,888.74 - Step 6: Final answer
x = 58,042.47
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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.