Finding the Fourth Proportional to 83,135.57, 124,714.05 and 38,146.07
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Solution
The fourth proportional to 83,135.57, 124,714.05 and 38,146.07 is: 57,224.02
Step by Step Solution
- Step 1: Write the proportion equation
83,135.57 : 124,714.05 = 38,146.07 : x - Step 2: Convert to fraction form
83,135.57/124,714.05 = 38,146.07/x - Step 3: Cross multiply
83,135.57x = 124,714.05 × 38,146.07 - Step 4: Simplify right side
83,135.57x = 4,757,351,050.02 - Step 5: Solve for x
x = 4,757,351,050.02/83,135.57 - Step 6: Final answer
x = 57,224.02
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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.