Home / 51,212.32-76,815.75-19,637.51

Finding the Fourth Proportional to 51,212.32, 76,815.75 and 19,637.51

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Solution

The fourth proportional to 51,212.32, 76,815.75 and 19,637.51 is: 29,455.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,212.32 : 76,815.75 = 19,637.51 : x
  2. Step 2: Convert to fraction form
    51,212.32/76,815.75 = 19,637.51/x
  3. Step 3: Cross multiply
    51,212.32x = 76,815.75 × 19,637.51
  4. Step 4: Simplify right side
    51,212.32x = 1,508,469,889.12
  5. Step 5: Solve for x
    x = 1,508,469,889.12/51,212.32
  6. Step 6: Final answer
    x = 29,455.21

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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.