Finding the Fourth Proportional to 110,430.20, 165,645.30 and 40,311.80
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Solution
The fourth proportional to 110,430.20, 165,645.30 and 40,311.80 is: 60,467.70
Step by Step Solution
- Step 1: Write the proportion equation
110,430.20 : 165,645.30 = 40,311.80 : x - Step 2: Convert to fraction form
110,430.20/165,645.30 = 40,311.80/x - Step 3: Cross multiply
110,430.20x = 165,645.30 × 40,311.80 - Step 4: Simplify right side
110,430.20x = 6,677,460,204.54 - Step 5: Solve for x
x = 6,677,460,204.54/110,430.20 - Step 6: Final answer
x = 60,467.70
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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.