Finding the Fourth Proportional to 74,442.24, 111,669.98 and 21,134.99
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Solution
The fourth proportional to 74,442.24, 111,669.98 and 21,134.99 is: 31,704.37
Step by Step Solution
- Step 1: Write the proportion equation
74,442.24 : 111,669.98 = 21,134.99 : x - Step 2: Convert to fraction form
74,442.24/111,669.98 = 21,134.99/x - Step 3: Cross multiply
74,442.24x = 111,669.98 × 21,134.99 - Step 4: Simplify right side
74,442.24x = 2,360,144,084.10 - Step 5: Solve for x
x = 2,360,144,084.10/74,442.24 - Step 6: Final answer
x = 31,704.37
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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.