Home / 57,512.64-86,271.34-20,076.42

Finding the Fourth Proportional to 57,512.64, 86,271.34 and 20,076.42

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Solution

The fourth proportional to 57,512.64, 86,271.34 and 20,076.42 is: 30,115.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,512.64 : 86,271.34 = 20,076.42 : x
  2. Step 2: Convert to fraction form
    57,512.64/86,271.34 = 20,076.42/x
  3. Step 3: Cross multiply
    57,512.64x = 86,271.34 × 20,076.42
  4. Step 4: Simplify right side
    57,512.64x = 1,732,019,655.80
  5. Step 5: Solve for x
    x = 1,732,019,655.80/57,512.64
  6. Step 6: Final answer
    x = 30,115.46

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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.