Home / 57,923.43-86,892.30-20,475.78

Finding the Fourth Proportional to 57,923.43, 86,892.30 and 20,475.78

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Solution

The fourth proportional to 57,923.43, 86,892.30 and 20,475.78 is: 30,716.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,923.43 : 86,892.30 = 20,475.78 : x
  2. Step 2: Convert to fraction form
    57,923.43/86,892.30 = 20,475.78/x
  3. Step 3: Cross multiply
    57,923.43x = 86,892.30 × 20,475.78
  4. Step 4: Simplify right side
    57,923.43x = 1,779,187,618.49
  5. Step 5: Solve for x
    x = 1,779,187,618.49/57,923.43
  6. Step 6: Final answer
    x = 30,716.20

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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.