Home / 55,399.40-76,453.62-31,528.52

Finding the Fourth Proportional to 55,399.40, 76,453.62 and 31,528.52

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Solution

The fourth proportional to 55,399.40, 76,453.62 and 31,528.52 is: 43,510.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,399.40 : 76,453.62 = 31,528.52 : x
  2. Step 2: Convert to fraction form
    55,399.40/76,453.62 = 31,528.52/x
  3. Step 3: Cross multiply
    55,399.40x = 76,453.62 × 31,528.52
  4. Step 4: Simplify right side
    55,399.40x = 2,410,469,487.24
  5. Step 5: Solve for x
    x = 2,410,469,487.24/55,399.40
  6. Step 6: Final answer
    x = 43,510.75

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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.