Home / 51,262.20-76,870.17-21,664.80

Finding the Fourth Proportional to 51,262.20, 76,870.17 and 21,664.80

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Solution

The fourth proportional to 51,262.20, 76,870.17 and 21,664.80 is: 32,487.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,262.20 : 76,870.17 = 21,664.80 : x
  2. Step 2: Convert to fraction form
    51,262.20/76,870.17 = 21,664.80/x
  3. Step 3: Cross multiply
    51,262.20x = 76,870.17 × 21,664.80
  4. Step 4: Simplify right side
    51,262.20x = 1,665,376,859.02
  5. Step 5: Solve for x
    x = 1,665,376,859.02/51,262.20
  6. Step 6: Final answer
    x = 32,487.42

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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.