Finding the Fourth Proportional to 86,798.05, 119,794.08 and 54,969.91
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Solution
The fourth proportional to 86,798.05, 119,794.08 and 54,969.91 is: 75,866.56
Step by Step Solution
- Step 1: Write the proportion equation
86,798.05 : 119,794.08 = 54,969.91 : x - Step 2: Convert to fraction form
86,798.05/119,794.08 = 54,969.91/x - Step 3: Cross multiply
86,798.05x = 119,794.08 × 54,969.91 - Step 4: Simplify right side
86,798.05x = 6,585,069,796.13 - Step 5: Solve for x
x = 6,585,069,796.13/86,798.05 - Step 6: Final answer
x = 75,866.56
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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.