Finding the Fourth Proportional to 77,257.97, 115,877.85 and 20,337.65
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Solution
The fourth proportional to 77,257.97, 115,877.85 and 20,337.65 is: 30,504.08
Step by Step Solution
- Step 1: Write the proportion equation
77,257.97 : 115,877.85 = 20,337.65 : x - Step 2: Convert to fraction form
77,257.97/115,877.85 = 20,337.65/x - Step 3: Cross multiply
77,257.97x = 115,877.85 × 20,337.65 - Step 4: Simplify right side
77,257.97x = 2,356,683,369.48 - Step 5: Solve for x
x = 2,356,683,369.48/77,257.97 - Step 6: Final answer
x = 30,504.08
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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.