Finding the Fourth Proportional to 74,786.99, 112,095.68 and 30,358.08
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Solution
The fourth proportional to 74,786.99, 112,095.68 and 30,358.08 is: 45,502.70
Step by Step Solution
- Step 1: Write the proportion equation
74,786.99 : 112,095.68 = 30,358.08 : x - Step 2: Convert to fraction form
74,786.99/112,095.68 = 30,358.08/x - Step 3: Cross multiply
74,786.99x = 112,095.68 × 30,358.08 - Step 4: Simplify right side
74,786.99x = 3,403,009,469.30 - Step 5: Solve for x
x = 3,403,009,469.30/74,786.99 - Step 6: Final answer
x = 45,502.70
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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.