Finding the Fourth Proportional to 76,808.17, 115,187.33 and 29,420.74
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Solution
The fourth proportional to 76,808.17, 115,187.33 and 29,420.74 is: 44,121.56
Step by Step Solution
- Step 1: Write the proportion equation
76,808.17 : 115,187.33 = 29,420.74 : x - Step 2: Convert to fraction form
76,808.17/115,187.33 = 29,420.74/x - Step 3: Cross multiply
76,808.17x = 115,187.33 × 29,420.74 - Step 4: Simplify right side
76,808.17x = 3,388,895,911.29 - Step 5: Solve for x
x = 3,388,895,911.29/76,808.17 - Step 6: Final answer
x = 44,121.56
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1.5x scale
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.