Finding the Fourth Proportional to 78,206.71, 107,923.94 and 44,214.67
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Solution
The fourth proportional to 78,206.71, 107,923.94 and 44,214.67 is: 61,015.50
Step by Step Solution
- Step 1: Write the proportion equation
78,206.71 : 107,923.94 = 44,214.67 : x - Step 2: Convert to fraction form
78,206.71/107,923.94 = 44,214.67/x - Step 3: Cross multiply
78,206.71x = 107,923.94 × 44,214.67 - Step 4: Simplify right side
78,206.71x = 4,771,821,171.13 - Step 5: Solve for x
x = 4,771,821,171.13/78,206.71 - Step 6: Final answer
x = 61,015.50
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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.