Finding the Fourth Proportional to 99,779.08, 149,744.76 and 36,659.02
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Solution
The fourth proportional to 99,779.08, 149,744.76 and 36,659.02 is: 55,016.50
Step by Step Solution
- Step 1: Write the proportion equation
99,779.08 : 149,744.76 = 36,659.02 : x - Step 2: Convert to fraction form
99,779.08/149,744.76 = 36,659.02/x - Step 3: Cross multiply
99,779.08x = 149,744.76 × 36,659.02 - Step 4: Simplify right side
99,779.08x = 5,489,496,151.74 - Step 5: Solve for x
x = 5,489,496,151.74/99,779.08 - Step 6: Final answer
x = 55,016.50
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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.