Finding the Fourth Proportional to 84,871.80, 117,125.09 and 46,630.99
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Solution
The fourth proportional to 84,871.80, 117,125.09 and 46,630.99 is: 64,351.87
Step by Step Solution
- Step 1: Write the proportion equation
84,871.80 : 117,125.09 = 46,630.99 : x - Step 2: Convert to fraction form
84,871.80/117,125.09 = 46,630.99/x - Step 3: Cross multiply
84,871.80x = 117,125.09 × 46,630.99 - Step 4: Simplify right side
84,871.80x = 5,461,658,988.66 - Step 5: Solve for x
x = 5,461,658,988.66/84,871.80 - Step 6: Final answer
x = 64,351.87
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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.