Finding the Fourth Proportional to 74,649.94, 103,016.91 and 41,115.94
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Solution
The fourth proportional to 74,649.94, 103,016.91 and 41,115.94 is: 56,739.99
Step by Step Solution
- Step 1: Write the proportion equation
74,649.94 : 103,016.91 = 41,115.94 : x - Step 2: Convert to fraction form
74,649.94/103,016.91 = 41,115.94/x - Step 3: Cross multiply
74,649.94x = 103,016.91 × 41,115.94 - Step 4: Simplify right side
74,649.94x = 4,235,636,987.19 - Step 5: Solve for x
x = 4,235,636,987.19/74,649.94 - Step 6: Final answer
x = 56,739.99
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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.