Finding the Fourth Proportional to 73,290.70, 109,860.99 and 28,899.46
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Solution
The fourth proportional to 73,290.70, 109,860.99 and 28,899.46 is: 43,319.59
Step by Step Solution
- Step 1: Write the proportion equation
73,290.70 : 109,860.99 = 28,899.46 : x - Step 2: Convert to fraction form
73,290.70/109,860.99 = 28,899.46/x - Step 3: Cross multiply
73,290.70x = 109,860.99 × 28,899.46 - Step 4: Simplify right side
73,290.70x = 3,174,923,286.07 - Step 5: Solve for x
x = 3,174,923,286.07/73,290.70 - Step 6: Final answer
x = 43,319.59
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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.