Finding the Fourth Proportional to 84,859.70, 127,257.15 and 25,675.70
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Solution
The fourth proportional to 84,859.70, 127,257.15 and 25,675.70 is: 38,503.75
Step by Step Solution
- Step 1: Write the proportion equation
84,859.70 : 127,257.15 = 25,675.70 : x - Step 2: Convert to fraction form
84,859.70/127,257.15 = 25,675.70/x - Step 3: Cross multiply
84,859.70x = 127,257.15 × 25,675.70 - Step 4: Simplify right side
84,859.70x = 3,267,416,406.26 - Step 5: Solve for x
x = 3,267,416,406.26/84,859.70 - Step 6: Final answer
x = 38,503.75
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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.