Finding the Fourth Proportional to 73,400.80, 109,906.80 and 57,848.80
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Solution
The fourth proportional to 73,400.80, 109,906.80 and 57,848.80 is: 86,619.99
Step by Step Solution
- Step 1: Write the proportion equation
73,400.80 : 109,906.80 = 57,848.80 : x - Step 2: Convert to fraction form
73,400.80/109,906.80 = 57,848.80/x - Step 3: Cross multiply
73,400.80x = 109,906.80 × 57,848.80 - Step 4: Simplify right side
73,400.80x = 6,357,976,491.84 - Step 5: Solve for x
x = 6,357,976,491.84/73,400.80 - Step 6: Final answer
x = 86,619.99
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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.