Home / 57,708.33-86,572.07-20,258.69

Finding the Fourth Proportional to 57,708.33, 86,572.07 and 20,258.69

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Solution

The fourth proportional to 57,708.33, 86,572.07 and 20,258.69 is: 30,391.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,708.33 : 86,572.07 = 20,258.69 : x
  2. Step 2: Convert to fraction form
    57,708.33/86,572.07 = 20,258.69/x
  3. Step 3: Cross multiply
    57,708.33x = 86,572.07 × 20,258.69
  4. Step 4: Simplify right side
    57,708.33x = 1,753,836,728.79
  5. Step 5: Solve for x
    x = 1,753,836,728.79/57,708.33
  6. Step 6: Final answer
    x = 30,391.40

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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.