Finding the Fourth Proportional to 99,779.60, 149,650.20 and 29,661.20
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Solution
The fourth proportional to 99,779.60, 149,650.20 and 29,661.20 is: 44,486.09
Step by Step Solution
- Step 1: Write the proportion equation
99,779.60 : 149,650.20 = 29,661.20 : x - Step 2: Convert to fraction form
99,779.60/149,650.20 = 29,661.20/x - Step 3: Cross multiply
99,779.60x = 149,650.20 × 29,661.20 - Step 4: Simplify right side
99,779.60x = 4,438,804,512.24 - Step 5: Solve for x
x = 4,438,804,512.24/99,779.60 - Step 6: Final answer
x = 44,486.09
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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.