Finding the Fourth Proportional to 87,517.19, 120,776.16 and 53,525.07
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Solution
The fourth proportional to 87,517.19, 120,776.16 and 53,525.07 is: 73,866.09
Step by Step Solution
- Step 1: Write the proportion equation
87,517.19 : 120,776.16 = 53,525.07 : x - Step 2: Convert to fraction form
87,517.19/120,776.16 = 53,525.07/x - Step 3: Cross multiply
87,517.19x = 120,776.16 × 53,525.07 - Step 4: Simplify right side
87,517.19x = 6,464,552,619.05 - Step 5: Solve for x
x = 6,464,552,619.05/87,517.19 - Step 6: Final answer
x = 73,866.09
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.