Home / 75,987.05-114,013.37-40,919.72

Finding the Fourth Proportional to 75,987.05, 114,013.37 and 40,919.72

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Solution

The fourth proportional to 75,987.05, 114,013.37 and 40,919.72 is: 61,397.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,987.05 : 114,013.37 = 40,919.72 : x
  2. Step 2: Convert to fraction form
    75,987.05/114,013.37 = 40,919.72/x
  3. Step 3: Cross multiply
    75,987.05x = 114,013.37 × 40,919.72
  4. Step 4: Simplify right side
    75,987.05x = 4,665,394,708.89
  5. Step 5: Solve for x
    x = 4,665,394,708.89/75,987.05
  6. Step 6: Final answer
    x = 61,397.24

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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.