Home / 57,020.82-78,687.36-31,526.54

Finding the Fourth Proportional to 57,020.82, 78,687.36 and 31,526.54

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Solution

The fourth proportional to 57,020.82, 78,687.36 and 31,526.54 is: 43,505.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,020.82 : 78,687.36 = 31,526.54 : x
  2. Step 2: Convert to fraction form
    57,020.82/78,687.36 = 31,526.54/x
  3. Step 3: Cross multiply
    57,020.82x = 78,687.36 × 31,526.54
  4. Step 4: Simplify right side
    57,020.82x = 2,480,740,202.53
  5. Step 5: Solve for x
    x = 2,480,740,202.53/57,020.82
  6. Step 6: Final answer
    x = 43,505.87

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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.