Finding the Fourth Proportional to 99,777.60, 149,647.20 and 29,659.20
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Solution
The fourth proportional to 99,777.60, 149,647.20 and 29,659.20 is: 44,483.09
Step by Step Solution
- Step 1: Write the proportion equation
99,777.60 : 149,647.20 = 29,659.20 : x - Step 2: Convert to fraction form
99,777.60/149,647.20 = 29,659.20/x - Step 3: Cross multiply
99,777.60x = 149,647.20 × 29,659.20 - Step 4: Simplify right side
99,777.60x = 4,438,416,234.24 - Step 5: Solve for x
x = 4,438,416,234.24/99,777.60 - Step 6: Final answer
x = 44,483.09
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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.