Finding the Fourth Proportional to 80,430.12, 110,989.80 and 44,619.48
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Solution
The fourth proportional to 80,430.12, 110,989.80 and 44,619.48 is: 61,572.79
Step by Step Solution
- Step 1: Write the proportion equation
80,430.12 : 110,989.80 = 44,619.48 : x - Step 2: Convert to fraction form
80,430.12/110,989.80 = 44,619.48/x - Step 3: Cross multiply
80,430.12x = 110,989.80 × 44,619.48 - Step 4: Simplify right side
80,430.12x = 4,952,307,161.30 - Step 5: Solve for x
x = 4,952,307,161.30/80,430.12 - Step 6: Final answer
x = 61,572.79
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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.