Finding the Fourth Proportional to 76,825.76, 115,237.49 and 46,848.80
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Solution
The fourth proportional to 76,825.76, 115,237.49 and 46,848.80 is: 70,272.50
Step by Step Solution
- Step 1: Write the proportion equation
76,825.76 : 115,237.49 = 46,848.80 : x - Step 2: Convert to fraction form
76,825.76/115,237.49 = 46,848.80/x - Step 3: Cross multiply
76,825.76x = 115,237.49 × 46,848.80 - Step 4: Simplify right side
76,825.76x = 5,398,738,175.36 - Step 5: Solve for x
x = 5,398,738,175.36/76,825.76 - Step 6: Final answer
x = 70,272.50
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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.