Finding the Fourth Proportional to 81,467.15, 122,209.16 and 22,302.81
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Solution
The fourth proportional to 81,467.15, 122,209.16 and 22,302.81 is: 33,456.52
Step by Step Solution
- Step 1: Write the proportion equation
81,467.15 : 122,209.16 = 22,302.81 : x - Step 2: Convert to fraction form
81,467.15/122,209.16 = 22,302.81/x - Step 3: Cross multiply
81,467.15x = 122,209.16 × 22,302.81 - Step 4: Simplify right side
81,467.15x = 2,725,607,564.23 - Step 5: Solve for x
x = 2,725,607,564.23/81,467.15 - Step 6: Final answer
x = 33,456.52
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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.