Finding the Fourth Proportional to 73,948.68, 110,901.12 and 21,358.62
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Solution
The fourth proportional to 73,948.68, 110,901.12 and 21,358.62 is: 32,031.60
Step by Step Solution
- Step 1: Write the proportion equation
73,948.68 : 110,901.12 = 21,358.62 : x - Step 2: Convert to fraction form
73,948.68/110,901.12 = 21,358.62/x - Step 3: Cross multiply
73,948.68x = 110,901.12 × 21,358.62 - Step 4: Simplify right side
73,948.68x = 2,368,694,879.65 - Step 5: Solve for x
x = 2,368,694,879.65/73,948.68 - Step 6: Final answer
x = 32,031.60
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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.