Home / 51,306.30-76,906.41-19,707.90

Finding the Fourth Proportional to 51,306.30, 76,906.41 and 19,707.90

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Solution

The fourth proportional to 51,306.30, 76,906.41 and 19,707.90 is: 29,541.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,306.30 : 76,906.41 = 19,707.90 : x
  2. Step 2: Convert to fraction form
    51,306.30/76,906.41 = 19,707.90/x
  3. Step 3: Cross multiply
    51,306.30x = 76,906.41 × 19,707.90
  4. Step 4: Simplify right side
    51,306.30x = 1,515,663,837.64
  5. Step 5: Solve for x
    x = 1,515,663,837.64/51,306.30
  6. Step 6: Final answer
    x = 29,541.48

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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.