Finding the Fourth Proportional to 73,869.20, 110,731.80 and 42,246.80
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Solution
The fourth proportional to 73,869.20, 110,731.80 and 42,246.80 is: 63,329.02
Step by Step Solution
- Step 1: Write the proportion equation
73,869.20 : 110,731.80 = 42,246.80 : x - Step 2: Convert to fraction form
73,869.20/110,731.80 = 42,246.80/x - Step 3: Cross multiply
73,869.20x = 110,731.80 × 42,246.80 - Step 4: Simplify right side
73,869.20x = 4,678,064,208.24 - Step 5: Solve for x
x = 4,678,064,208.24/73,869.20 - Step 6: Final answer
x = 63,329.02
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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.