Finding the Fourth Proportional to 79,037.63, 109,069.70 and 43,226.88
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Solution
The fourth proportional to 79,037.63, 109,069.70 and 43,226.88 is: 59,651.88
Step by Step Solution
- Step 1: Write the proportion equation
79,037.63 : 109,069.70 = 43,226.88 : x - Step 2: Convert to fraction form
79,037.63/109,069.70 = 43,226.88/x - Step 3: Cross multiply
79,037.63x = 109,069.70 × 43,226.88 - Step 4: Simplify right side
79,037.63x = 4,714,742,833.54 - Step 5: Solve for x
x = 4,714,742,833.54/79,037.63 - Step 6: Final answer
x = 59,651.88
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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.