Finding the Fourth Proportional to 80,987.08, 111,762.30 and 44,687.68
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Solution
The fourth proportional to 80,987.08, 111,762.30 and 44,687.68 is: 61,669.07
Step by Step Solution
- Step 1: Write the proportion equation
80,987.08 : 111,762.30 = 44,687.68 : x - Step 2: Convert to fraction form
80,987.08/111,762.30 = 44,687.68/x - Step 3: Cross multiply
80,987.08x = 111,762.30 × 44,687.68 - Step 4: Simplify right side
80,987.08x = 4,994,397,898.46 - Step 5: Solve for x
x = 4,994,397,898.46/80,987.08 - Step 6: Final answer
x = 61,669.07
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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.