Finding the Fourth Proportional to 79,927.20, 110,231.82 and 48,090.15
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Solution
The fourth proportional to 79,927.20, 110,231.82 and 48,090.15 is: 66,323.66
Step by Step Solution
- Step 1: Write the proportion equation
79,927.20 : 110,231.82 = 48,090.15 : x - Step 2: Convert to fraction form
79,927.20/110,231.82 = 48,090.15/x - Step 3: Cross multiply
79,927.20x = 110,231.82 × 48,090.15 - Step 4: Simplify right side
79,927.20x = 5,301,064,758.57 - Step 5: Solve for x
x = 5,301,064,758.57/79,927.20 - Step 6: Final answer
x = 66,323.66
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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.