Home / 57,270.60-85,908.06-15,720.84

Finding the Fourth Proportional to 57,270.60, 85,908.06 and 15,720.84

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Solution

The fourth proportional to 57,270.60, 85,908.06 and 15,720.84 is: 23,581.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,270.60 : 85,908.06 = 15,720.84 : x
  2. Step 2: Convert to fraction form
    57,270.60/85,908.06 = 15,720.84/x
  3. Step 3: Cross multiply
    57,270.60x = 85,908.06 × 15,720.84
  4. Step 4: Simplify right side
    57,270.60x = 1,350,546,865.97
  5. Step 5: Solve for x
    x = 1,350,546,865.97/57,270.60
  6. Step 6: Final answer
    x = 23,581.85

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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.