Finding the Fourth Proportional to 74,759.64, 112,120.34 and 22,156.80
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Solution
The fourth proportional to 74,759.64, 112,120.34 and 22,156.80 is: 33,229.53
Step by Step Solution
- Step 1: Write the proportion equation
74,759.64 : 112,120.34 = 22,156.80 : x - Step 2: Convert to fraction form
74,759.64/112,120.34 = 22,156.80/x - Step 3: Cross multiply
74,759.64x = 112,120.34 × 22,156.80 - Step 4: Simplify right side
74,759.64x = 2,484,227,949.31 - Step 5: Solve for x
x = 2,484,227,949.31/74,759.64 - Step 6: Final answer
x = 33,229.53
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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.