Home / 57,740.20-86,529.30-45,914.20

Finding the Fourth Proportional to 57,740.20, 86,529.30 and 45,914.20

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Solution

The fourth proportional to 57,740.20, 86,529.30 and 45,914.20 is: 68,806.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,740.20 : 86,529.30 = 45,914.20 : x
  2. Step 2: Convert to fraction form
    57,740.20/86,529.30 = 45,914.20/x
  3. Step 3: Cross multiply
    57,740.20x = 86,529.30 × 45,914.20
  4. Step 4: Simplify right side
    57,740.20x = 3,972,923,586.06
  5. Step 5: Solve for x
    x = 3,972,923,586.06/57,740.20
  6. Step 6: Final answer
    x = 68,806.89

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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.