Home / 57,724.36-86,575.60-20,275.64

Finding the Fourth Proportional to 57,724.36, 86,575.60 and 20,275.64

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Solution

The fourth proportional to 57,724.36, 86,575.60 and 20,275.64 is: 30,409.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,724.36 : 86,575.60 = 20,275.64 : x
  2. Step 2: Convert to fraction form
    57,724.36/86,575.60 = 20,275.64/x
  3. Step 3: Cross multiply
    57,724.36x = 86,575.60 × 20,275.64
  4. Step 4: Simplify right side
    57,724.36x = 1,755,375,698.38
  5. Step 5: Solve for x
    x = 1,755,375,698.38/57,724.36
  6. Step 6: Final answer
    x = 30,409.62

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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.