Home / 51,239.28-76,862.88-19,664.46

Finding the Fourth Proportional to 51,239.28, 76,862.88 and 19,664.46

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Solution

The fourth proportional to 51,239.28, 76,862.88 and 19,664.46 is: 29,498.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,239.28 : 76,862.88 = 19,664.46 : x
  2. Step 2: Convert to fraction form
    51,239.28/76,862.88 = 19,664.46/x
  3. Step 3: Cross multiply
    51,239.28x = 76,862.88 × 19,664.46
  4. Step 4: Simplify right side
    51,239.28x = 1,511,467,029.24
  5. Step 5: Solve for x
    x = 1,511,467,029.24/51,239.28
  6. Step 6: Final answer
    x = 29,498.21

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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.