Home / 75,540.20-113,306.70-25,615.40

Finding the Fourth Proportional to 75,540.20, 113,306.70 and 25,615.40

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Solution

The fourth proportional to 75,540.20, 113,306.70 and 25,615.40 is: 38,421.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,540.20 : 113,306.70 = 25,615.40 : x
  2. Step 2: Convert to fraction form
    75,540.20/113,306.70 = 25,615.40/x
  3. Step 3: Cross multiply
    75,540.20x = 113,306.70 × 25,615.40
  4. Step 4: Simplify right side
    75,540.20x = 2,902,396,443.18
  5. Step 5: Solve for x
    x = 2,902,396,443.18/75,540.20
  6. Step 6: Final answer
    x = 38,421.88

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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.