Home / 57,728.34-86,521.76-32,789.36

Finding the Fourth Proportional to 57,728.34, 86,521.76 and 32,789.36

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Solution

The fourth proportional to 57,728.34, 86,521.76 and 32,789.36 is: 49,143.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,728.34 : 86,521.76 = 32,789.36 : x
  2. Step 2: Convert to fraction form
    57,728.34/86,521.76 = 32,789.36/x
  3. Step 3: Cross multiply
    57,728.34x = 86,521.76 × 32,789.36
  4. Step 4: Simplify right side
    57,728.34x = 2,836,992,539.92
  5. Step 5: Solve for x
    x = 2,836,992,539.92/57,728.34
  6. Step 6: Final answer
    x = 49,143.84

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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.