Finding the Fourth Proportional to 74,738.57, 112,088.75 and 22,135.75
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Solution
The fourth proportional to 74,738.57, 112,088.75 and 22,135.75 is: 33,197.96
Step by Step Solution
- Step 1: Write the proportion equation
74,738.57 : 112,088.75 = 22,135.75 : x - Step 2: Convert to fraction form
74,738.57/112,088.75 = 22,135.75/x - Step 3: Cross multiply
74,738.57x = 112,088.75 × 22,135.75 - Step 4: Simplify right side
74,738.57x = 2,481,168,156.91 - Step 5: Solve for x
x = 2,481,168,156.91/74,738.57 - Step 6: Final answer
x = 33,197.96
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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.