Finding the Fourth Proportional to 79,480.81, 119,239.68 and 23,318.65
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Solution
The fourth proportional to 79,480.81, 119,239.68 and 23,318.65 is: 34,983.39
Step by Step Solution
- Step 1: Write the proportion equation
79,480.81 : 119,239.68 = 23,318.65 : x - Step 2: Convert to fraction form
79,480.81/119,239.68 = 23,318.65/x - Step 3: Cross multiply
79,480.81x = 119,239.68 × 23,318.65 - Step 4: Simplify right side
79,480.81x = 2,780,508,364.03 - Step 5: Solve for x
x = 2,780,508,364.03/79,480.81 - Step 6: Final answer
x = 34,983.39
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1.5x scale
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.