Finding the Fourth Proportional to 84,537.36, 126,809.93 and 47,069.21
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Solution
The fourth proportional to 84,537.36, 126,809.93 and 47,069.21 is: 70,605.99
Step by Step Solution
- Step 1: Write the proportion equation
84,537.36 : 126,809.93 = 47,069.21 : x - Step 2: Convert to fraction form
84,537.36/126,809.93 = 47,069.21/x - Step 3: Cross multiply
84,537.36x = 126,809.93 × 47,069.21 - Step 4: Simplify right side
84,537.36x = 5,968,843,659.95 - Step 5: Solve for x
x = 5,968,843,659.95/84,537.36 - Step 6: Final answer
x = 70,605.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.