Finding the Fourth Proportional to 83,430.34, 125,144.19 and 20,250.99
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Solution
The fourth proportional to 83,430.34, 125,144.19 and 20,250.99 is: 30,376.16
Step by Step Solution
- Step 1: Write the proportion equation
83,430.34 : 125,144.19 = 20,250.99 : x - Step 2: Convert to fraction form
83,430.34/125,144.19 = 20,250.99/x - Step 3: Cross multiply
83,430.34x = 125,144.19 × 20,250.99 - Step 4: Simplify right side
83,430.34x = 2,534,293,740.25 - Step 5: Solve for x
x = 2,534,293,740.25/83,430.34 - Step 6: Final answer
x = 30,376.16
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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.