Finding the Fourth Proportional to 84,918.07, 117,184.40 and 48,618.31
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Solution
The fourth proportional to 84,918.07, 117,184.40 and 48,618.31 is: 67,091.82
Step by Step Solution
- Step 1: Write the proportion equation
84,918.07 : 117,184.40 = 48,618.31 : x - Step 2: Convert to fraction form
84,918.07/117,184.40 = 48,618.31/x - Step 3: Cross multiply
84,918.07x = 117,184.40 × 48,618.31 - Step 4: Simplify right side
84,918.07x = 5,697,307,243.27 - Step 5: Solve for x
x = 5,697,307,243.27/84,918.07 - Step 6: Final answer
x = 67,091.82
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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.