Finding the Fourth Proportional to 83,530.76, 125,296.68 and 21,201.44
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Solution
The fourth proportional to 83,530.76, 125,296.68 and 21,201.44 is: 31,802.30
Step by Step Solution
- Step 1: Write the proportion equation
83,530.76 : 125,296.68 = 21,201.44 : x - Step 2: Convert to fraction form
83,530.76/125,296.68 = 21,201.44/x - Step 3: Cross multiply
83,530.76x = 125,296.68 × 21,201.44 - Step 4: Simplify right side
83,530.76x = 2,656,470,043.22 - Step 5: Solve for x
x = 2,656,470,043.22/83,530.76 - Step 6: Final answer
x = 31,802.30
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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.