Finding the Fourth Proportional to 83,320.18, 124,992.14 and 30,725.58
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Solution
The fourth proportional to 83,320.18, 124,992.14 and 30,725.58 is: 46,092.75
Step by Step Solution
- Step 1: Write the proportion equation
83,320.18 : 124,992.14 = 30,725.58 : x - Step 2: Convert to fraction form
83,320.18/124,992.14 = 30,725.58/x - Step 3: Cross multiply
83,320.18x = 124,992.14 × 30,725.58 - Step 4: Simplify right side
83,320.18x = 3,840,455,996.94 - Step 5: Solve for x
x = 3,840,455,996.94/83,320.18 - Step 6: Final answer
x = 46,092.75
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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.