Finding the Fourth Proportional to 109,708.21, 164,554.11 and 39,587.53
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Solution
The fourth proportional to 109,708.21, 164,554.11 and 39,587.53 is: 59,378.33
Step by Step Solution
- Step 1: Write the proportion equation
109,708.21 : 164,554.11 = 39,587.53 : x - Step 2: Convert to fraction form
109,708.21/164,554.11 = 39,587.53/x - Step 3: Cross multiply
109,708.21x = 164,554.11 × 39,587.53 - Step 4: Simplify right side
109,708.21x = 6,514,289,943.48 - Step 5: Solve for x
x = 6,514,289,943.48/109,708.21 - Step 6: Final answer
x = 59,378.33
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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.