Home / 57,786.20-86,679.30-51,225.20

Finding the Fourth Proportional to 57,786.20, 86,679.30 and 51,225.20

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Solution

The fourth proportional to 57,786.20, 86,679.30 and 51,225.20 is: 76,837.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,786.20 : 86,679.30 = 51,225.20 : x
  2. Step 2: Convert to fraction form
    57,786.20/86,679.30 = 51,225.20/x
  3. Step 3: Cross multiply
    57,786.20x = 86,679.30 × 51,225.20
  4. Step 4: Simplify right side
    57,786.20x = 4,440,164,478.36
  5. Step 5: Solve for x
    x = 4,440,164,478.36/57,786.20
  6. Step 6: Final answer
    x = 76,837.80

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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.