Finding the Fourth Proportional to 73,975.20, 110,890.80 and 42,352.80
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Solution
The fourth proportional to 73,975.20, 110,890.80 and 42,352.80 is: 63,487.98
Step by Step Solution
- Step 1: Write the proportion equation
73,975.20 : 110,890.80 = 42,352.80 : x - Step 2: Convert to fraction form
73,975.20/110,890.80 = 42,352.80/x - Step 3: Cross multiply
73,975.20x = 110,890.80 × 42,352.80 - Step 4: Simplify right side
73,975.20x = 4,696,535,874.24 - Step 5: Solve for x
x = 4,696,535,874.24/73,975.20 - Step 6: Final answer
x = 63,487.98
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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.