Finding the Fourth Proportional to 79,873.76, 110,261.99 and 50,814.07
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Solution
The fourth proportional to 79,873.76, 110,261.99 and 50,814.07 is: 70,146.45
Step by Step Solution
- Step 1: Write the proportion equation
79,873.76 : 110,261.99 = 50,814.07 : x - Step 2: Convert to fraction form
79,873.76/110,261.99 = 50,814.07/x - Step 3: Cross multiply
79,873.76x = 110,261.99 × 50,814.07 - Step 4: Simplify right side
79,873.76x = 5,602,860,478.20 - Step 5: Solve for x
x = 5,602,860,478.20/79,873.76 - Step 6: Final answer
x = 70,146.45
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1.5x scale
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.