Finding the Fourth Proportional to 76,829.76, 115,169.80 and 34,720.44
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Solution
The fourth proportional to 76,829.76, 115,169.80 and 34,720.44 is: 52,046.84
Step by Step Solution
- Step 1: Write the proportion equation
76,829.76 : 115,169.80 = 34,720.44 : x - Step 2: Convert to fraction form
76,829.76/115,169.80 = 34,720.44/x - Step 3: Cross multiply
76,829.76x = 115,169.80 × 34,720.44 - Step 4: Simplify right side
76,829.76x = 3,998,746,130.71 - Step 5: Solve for x
x = 3,998,746,130.71/76,829.76 - Step 6: Final answer
x = 52,046.84
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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.