Home / 57,029.87-78,694.35-31,532.81

Finding the Fourth Proportional to 57,029.87, 78,694.35 and 31,532.81

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Solution

The fourth proportional to 57,029.87, 78,694.35 and 31,532.81 is: 43,511.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,029.87 : 78,694.35 = 31,532.81 : x
  2. Step 2: Convert to fraction form
    57,029.87/78,694.35 = 31,532.81/x
  3. Step 3: Cross multiply
    57,029.87x = 78,694.35 × 31,532.81
  4. Step 4: Simplify right side
    57,029.87x = 2,481,453,986.62
  5. Step 5: Solve for x
    x = 2,481,453,986.62/57,029.87
  6. Step 6: Final answer
    x = 43,511.48

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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.