Home / 54,288.07-74,920.61-30,422.43

Finding the Fourth Proportional to 54,288.07, 74,920.61 and 30,422.43

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Solution

The fourth proportional to 54,288.07, 74,920.61 and 30,422.43 is: 41,984.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,288.07 : 74,920.61 = 30,422.43 : x
  2. Step 2: Convert to fraction form
    54,288.07/74,920.61 = 30,422.43/x
  3. Step 3: Cross multiply
    54,288.07x = 74,920.61 × 30,422.43
  4. Step 4: Simplify right side
    54,288.07x = 2,279,267,089.34
  5. Step 5: Solve for x
    x = 2,279,267,089.34/54,288.07
  6. Step 6: Final answer
    x = 41,984.68

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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.