Home / 57,738.20-86,526.30-45,912.20

Finding the Fourth Proportional to 57,738.20, 86,526.30 and 45,912.20

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Solution

The fourth proportional to 57,738.20, 86,526.30 and 45,912.20 is: 68,803.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,738.20 : 86,526.30 = 45,912.20 : x
  2. Step 2: Convert to fraction form
    57,738.20/86,526.30 = 45,912.20/x
  3. Step 3: Cross multiply
    57,738.20x = 86,526.30 × 45,912.20
  4. Step 4: Simplify right side
    57,738.20x = 3,972,612,790.86
  5. Step 5: Solve for x
    x = 3,972,612,790.86/57,738.20
  6. Step 6: Final answer
    x = 68,803.89

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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.