Finding the Fourth Proportional to 76,225.44, 114,319.68 and 31,828.08
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Solution
The fourth proportional to 76,225.44, 114,319.68 and 31,828.08 is: 47,734.40
Step by Step Solution
- Step 1: Write the proportion equation
76,225.44 : 114,319.68 = 31,828.08 : x - Step 2: Convert to fraction form
76,225.44/114,319.68 = 31,828.08/x - Step 3: Cross multiply
76,225.44x = 114,319.68 × 31,828.08 - Step 4: Simplify right side
76,225.44x = 3,638,575,920.61 - Step 5: Solve for x
x = 3,638,575,920.61/76,225.44 - Step 6: Final answer
x = 47,734.40
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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.