Finding the Fourth Proportional to 83,358.87, 115,088.91 and 74,390.97
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Solution
The fourth proportional to 83,358.87, 115,088.91 and 74,390.97 is: 102,707.43
Step by Step Solution
- Step 1: Write the proportion equation
83,358.87 : 115,088.91 = 74,390.97 : x - Step 2: Convert to fraction form
83,358.87/115,088.91 = 74,390.97/x - Step 3: Cross multiply
83,358.87x = 115,088.91 × 74,390.97 - Step 4: Simplify right side
83,358.87x = 8,561,575,651.14 - Step 5: Solve for x
x = 8,561,575,651.14/83,358.87 - Step 6: Final answer
x = 102,707.43
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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.