Finding the Fourth Proportional to 73,579.20, 110,368.80 and 43,981.80
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Solution
The fourth proportional to 73,579.20, 110,368.80 and 43,981.80 is: 65,972.70
Step by Step Solution
- Step 1: Write the proportion equation
73,579.20 : 110,368.80 = 43,981.80 : x - Step 2: Convert to fraction form
73,579.20/110,368.80 = 43,981.80/x - Step 3: Cross multiply
73,579.20x = 110,368.80 × 43,981.80 - Step 4: Simplify right side
73,579.20x = 4,854,218,487.84 - Step 5: Solve for x
x = 4,854,218,487.84/73,579.20 - Step 6: Final answer
x = 65,972.70
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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.