Finding the Fourth Proportional to 87,964.99, 121,358.91 and 57,767.07
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Solution
The fourth proportional to 87,964.99, 121,358.91 and 57,767.07 is: 79,697.04
Step by Step Solution
- Step 1: Write the proportion equation
87,964.99 : 121,358.91 = 57,767.07 : x - Step 2: Convert to fraction form
87,964.99/121,358.91 = 57,767.07/x - Step 3: Cross multiply
87,964.99x = 121,358.91 × 57,767.07 - Step 4: Simplify right side
87,964.99x = 7,010,548,995.88 - Step 5: Solve for x
x = 7,010,548,995.88/87,964.99 - Step 6: Final answer
x = 79,697.04
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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.