Finding the Fourth Proportional to 74,102.76, 111,174.95 and 29,760.65
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Solution
The fourth proportional to 74,102.76, 111,174.95 and 29,760.65 is: 44,649.32
Step by Step Solution
- Step 1: Write the proportion equation
74,102.76 : 111,174.95 = 29,760.65 : x - Step 2: Convert to fraction form
74,102.76/111,174.95 = 29,760.65/x - Step 3: Cross multiply
74,102.76x = 111,174.95 × 29,760.65 - Step 4: Simplify right side
74,102.76x = 3,308,638,071.04 - Step 5: Solve for x
x = 3,308,638,071.04/74,102.76 - Step 6: Final answer
x = 44,649.32
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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.