Finding the Fourth Proportional to 83,780.34, 125,675.16 and 27,618.18
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Solution
The fourth proportional to 83,780.34, 125,675.16 and 27,618.18 is: 41,428.80
Step by Step Solution
- Step 1: Write the proportion equation
83,780.34 : 125,675.16 = 27,618.18 : x - Step 2: Convert to fraction form
83,780.34/125,675.16 = 27,618.18/x - Step 3: Cross multiply
83,780.34x = 125,675.16 × 27,618.18 - Step 4: Simplify right side
83,780.34x = 3,470,919,190.41 - Step 5: Solve for x
x = 3,470,919,190.41/83,780.34 - Step 6: Final answer
x = 41,428.80
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1.5x scale
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.