Home / 57,789.33-86,709.05-20,376.14

Finding the Fourth Proportional to 57,789.33, 86,709.05 and 20,376.14

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Solution

The fourth proportional to 57,789.33, 86,709.05 and 20,376.14 is: 30,573.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,789.33 : 86,709.05 = 20,376.14 : x
  2. Step 2: Convert to fraction form
    57,789.33/86,709.05 = 20,376.14/x
  3. Step 3: Cross multiply
    57,789.33x = 86,709.05 × 20,376.14
  4. Step 4: Simplify right side
    57,789.33x = 1,766,796,009.78
  5. Step 5: Solve for x
    x = 1,766,796,009.78/57,789.33
  6. Step 6: Final answer
    x = 30,573.05

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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.