Finding the Fourth Proportional to 79,793.18, 110,110.24 and 43,980.36
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Solution
The fourth proportional to 79,793.18, 110,110.24 and 43,980.36 is: 60,690.50
Step by Step Solution
- Step 1: Write the proportion equation
79,793.18 : 110,110.24 = 43,980.36 : x - Step 2: Convert to fraction form
79,793.18/110,110.24 = 43,980.36/x - Step 3: Cross multiply
79,793.18x = 110,110.24 × 43,980.36 - Step 4: Simplify right side
79,793.18x = 4,842,687,994.89 - Step 5: Solve for x
x = 4,842,687,994.89/79,793.18 - Step 6: Final answer
x = 60,690.50
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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.