Finding the Fourth Proportional to 77,208.24, 115,794.88 and 39,219.04
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Solution
The fourth proportional to 77,208.24, 115,794.88 and 39,219.04 is: 58,819.68
Step by Step Solution
- Step 1: Write the proportion equation
77,208.24 : 115,794.88 = 39,219.04 : x - Step 2: Convert to fraction form
77,208.24/115,794.88 = 39,219.04/x - Step 3: Cross multiply
77,208.24x = 115,794.88 × 39,219.04 - Step 4: Simplify right side
77,208.24x = 4,541,364,030.52 - Step 5: Solve for x
x = 4,541,364,030.52/77,208.24 - Step 6: Final answer
x = 58,819.68
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1.5x scale
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.