Home / 43,137.72-64,660.50-30,788.28

Finding the Fourth Proportional to 43,137.72, 64,660.50 and 30,788.28

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Solution

The fourth proportional to 43,137.72, 64,660.50 and 30,788.28 is: 46,149.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,137.72 : 64,660.50 = 30,788.28 : x
  2. Step 2: Convert to fraction form
    43,137.72/64,660.50 = 30,788.28/x
  3. Step 3: Cross multiply
    43,137.72x = 64,660.50 × 30,788.28
  4. Step 4: Simplify right side
    43,137.72x = 1,990,785,578.94
  5. Step 5: Solve for x
    x = 1,990,785,578.94/43,137.72
  6. Step 6: Final answer
    x = 46,149.53

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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.