Finding the Fourth Proportional to 73,209.78, 109,872.99 and 28,847.70
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Solution
The fourth proportional to 73,209.78, 109,872.99 and 28,847.70 is: 43,294.53
Step by Step Solution
- Step 1: Write the proportion equation
73,209.78 : 109,872.99 = 28,847.70 : x - Step 2: Convert to fraction form
73,209.78/109,872.99 = 28,847.70/x - Step 3: Cross multiply
73,209.78x = 109,872.99 × 28,847.70 - Step 4: Simplify right side
73,209.78x = 3,169,583,053.62 - Step 5: Solve for x
x = 3,169,583,053.62/73,209.78 - Step 6: Final answer
x = 43,294.53
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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.