Finding the Fourth Proportional to 91,201.80, 136,802.70 and 32,017.80
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Solution
The fourth proportional to 91,201.80, 136,802.70 and 32,017.80 is: 48,026.70
Step by Step Solution
- Step 1: Write the proportion equation
91,201.80 : 136,802.70 = 32,017.80 : x - Step 2: Convert to fraction form
91,201.80/136,802.70 = 32,017.80/x - Step 3: Cross multiply
91,201.80x = 136,802.70 × 32,017.80 - Step 4: Simplify right side
91,201.80x = 4,380,121,488.06 - Step 5: Solve for x
x = 4,380,121,488.06/91,201.80 - Step 6: Final answer
x = 48,026.70
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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.