Finding the Fourth Proportional to 73,928.94, 110,890.17 and 21,340.62
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Solution
The fourth proportional to 73,928.94, 110,890.17 and 21,340.62 is: 32,009.99
Step by Step Solution
- Step 1: Write the proportion equation
73,928.94 : 110,890.17 = 21,340.62 : x - Step 2: Convert to fraction form
73,928.94/110,890.17 = 21,340.62/x - Step 3: Cross multiply
73,928.94x = 110,890.17 × 21,340.62 - Step 4: Simplify right side
73,928.94x = 2,366,464,979.71 - Step 5: Solve for x
x = 2,366,464,979.71/73,928.94 - Step 6: Final answer
x = 32,009.99
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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.