Home / 57,982.72-86,951.81-20,535.88

Finding the Fourth Proportional to 57,982.72, 86,951.81 and 20,535.88

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Solution

The fourth proportional to 57,982.72, 86,951.81 and 20,535.88 is: 30,795.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,982.72 : 86,951.81 = 20,535.88 : x
  2. Step 2: Convert to fraction form
    57,982.72/86,951.81 = 20,535.88/x
  3. Step 3: Cross multiply
    57,982.72x = 86,951.81 × 20,535.88
  4. Step 4: Simplify right side
    57,982.72x = 1,785,631,935.94
  5. Step 5: Solve for x
    x = 1,785,631,935.94/57,982.72
  6. Step 6: Final answer
    x = 30,795.93

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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.