Finding the Fourth Proportional to 77,106.12, 115,659.98 and 27,176.91
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Solution
The fourth proportional to 77,106.12, 115,659.98 and 27,176.91 is: 40,765.65
Step by Step Solution
- Step 1: Write the proportion equation
77,106.12 : 115,659.98 = 27,176.91 : x - Step 2: Convert to fraction form
77,106.12/115,659.98 = 27,176.91/x - Step 3: Cross multiply
77,106.12x = 115,659.98 × 27,176.91 - Step 4: Simplify right side
77,106.12x = 3,143,280,867.06 - Step 5: Solve for x
x = 3,143,280,867.06/77,106.12 - Step 6: Final answer
x = 40,765.65
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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.