Home / 54,186.07-74,780.72-30,320.43

Finding the Fourth Proportional to 54,186.07, 74,780.72 and 30,320.43

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Solution

The fourth proportional to 54,186.07, 74,780.72 and 30,320.43 is: 41,844.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,186.07 : 74,780.72 = 30,320.43 : x
  2. Step 2: Convert to fraction form
    54,186.07/74,780.72 = 30,320.43/x
  3. Step 3: Cross multiply
    54,186.07x = 74,780.72 × 30,320.43
  4. Step 4: Simplify right side
    54,186.07x = 2,267,383,586.11
  5. Step 5: Solve for x
    x = 2,267,383,586.11/54,186.07
  6. Step 6: Final answer
    x = 41,844.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.