Finding the Fourth Proportional to 86,740.20, 130,110.30 and 44,749.80
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Solution
The fourth proportional to 86,740.20, 130,110.30 and 44,749.80 is: 67,124.70
Step by Step Solution
- Step 1: Write the proportion equation
86,740.20 : 130,110.30 = 44,749.80 : x - Step 2: Convert to fraction form
86,740.20/130,110.30 = 44,749.80/x - Step 3: Cross multiply
86,740.20x = 130,110.30 × 44,749.80 - Step 4: Simplify right side
86,740.20x = 5,822,409,902.94 - Step 5: Solve for x
x = 5,822,409,902.94/86,740.20 - Step 6: Final answer
x = 67,124.70
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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.