Finding the Fourth Proportional to 80,430.38, 120,642.53 and 24,268.99
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Solution
The fourth proportional to 80,430.38, 120,642.53 and 24,268.99 is: 36,402.57
Step by Step Solution
- Step 1: Write the proportion equation
80,430.38 : 120,642.53 = 24,268.99 : x - Step 2: Convert to fraction form
80,430.38/120,642.53 = 24,268.99/x - Step 3: Cross multiply
80,430.38x = 120,642.53 × 24,268.99 - Step 4: Simplify right side
80,430.38x = 2,927,872,113.21 - Step 5: Solve for x
x = 2,927,872,113.21/80,430.38 - Step 6: Final answer
x = 36,402.57
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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.