Finding the Fourth Proportional to 79,443.14, 109,632.44 and 43,633.99
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Solution
The fourth proportional to 79,443.14, 109,632.44 and 43,633.99 is: 60,215.39
Step by Step Solution
- Step 1: Write the proportion equation
79,443.14 : 109,632.44 = 43,633.99 : x - Step 2: Convert to fraction form
79,443.14/109,632.44 = 43,633.99/x - Step 3: Cross multiply
79,443.14x = 109,632.44 × 43,633.99 - Step 4: Simplify right side
79,443.14x = 4,783,700,024.30 - Step 5: Solve for x
x = 4,783,700,024.30/79,443.14 - Step 6: Final answer
x = 60,215.39
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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.