Finding the Fourth Proportional to 73,975.40, 110,732.70 and 42,717.80
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Solution
The fourth proportional to 73,975.40, 110,732.70 and 42,717.80 is: 63,943.65
Step by Step Solution
- Step 1: Write the proportion equation
73,975.40 : 110,732.70 = 42,717.80 : x - Step 2: Convert to fraction form
73,975.40/110,732.70 = 42,717.80/x - Step 3: Cross multiply
73,975.40x = 110,732.70 × 42,717.80 - Step 4: Simplify right side
73,975.40x = 4,730,257,332.06 - Step 5: Solve for x
x = 4,730,257,332.06/73,975.40 - Step 6: Final answer
x = 63,943.65
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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.