Finding the Fourth Proportional to 86,621.14, 119,539.02 and 48,896.20
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Solution
The fourth proportional to 86,621.14, 119,539.02 and 48,896.20 is: 67,477.80
Step by Step Solution
- Step 1: Write the proportion equation
86,621.14 : 119,539.02 = 48,896.20 : x - Step 2: Convert to fraction form
86,621.14/119,539.02 = 48,896.20/x - Step 3: Cross multiply
86,621.14x = 119,539.02 × 48,896.20 - Step 4: Simplify right side
86,621.14x = 5,845,003,829.72 - Step 5: Solve for x
x = 5,845,003,829.72/86,621.14 - Step 6: Final answer
x = 67,477.80
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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.