Finding the Fourth Proportional to 74,284.74, 111,459.96 and 29,997.99
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Solution
The fourth proportional to 74,284.74, 111,459.96 and 29,997.99 is: 45,010.25
Step by Step Solution
- Step 1: Write the proportion equation
74,284.74 : 111,459.96 = 29,997.99 : x - Step 2: Convert to fraction form
74,284.74/111,459.96 = 29,997.99/x - Step 3: Cross multiply
74,284.74x = 111,459.96 × 29,997.99 - Step 4: Simplify right side
74,284.74x = 3,343,574,765.48 - Step 5: Solve for x
x = 3,343,574,765.48/74,284.74 - Step 6: Final answer
x = 45,010.25
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.