Finding the Fourth Proportional to 74,786.93, 103,207.91 and 40,795.99
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Solution
The fourth proportional to 74,786.93, 103,207.91 and 40,795.99 is: 56,299.53
Step by Step Solution
- Step 1: Write the proportion equation
74,786.93 : 103,207.91 = 40,795.99 : x - Step 2: Convert to fraction form
74,786.93/103,207.91 = 40,795.99/x - Step 3: Cross multiply
74,786.93x = 103,207.91 × 40,795.99 - Step 4: Simplify right side
74,786.93x = 4,210,468,864.28 - Step 5: Solve for x
x = 4,210,468,864.28/74,786.93 - Step 6: Final answer
x = 56,299.53
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.