Home / 51,073.12-76,580.25-19,871.92

Finding the Fourth Proportional to 51,073.12, 76,580.25 and 19,871.92

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Solution

The fourth proportional to 51,073.12, 76,580.25 and 19,871.92 is: 29,796.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,073.12 : 76,580.25 = 19,871.92 : x
  2. Step 2: Convert to fraction form
    51,073.12/76,580.25 = 19,871.92/x
  3. Step 3: Cross multiply
    51,073.12x = 76,580.25 × 19,871.92
  4. Step 4: Simplify right side
    51,073.12x = 1,521,796,601.58
  5. Step 5: Solve for x
    x = 1,521,796,601.58/51,073.12
  6. Step 6: Final answer
    x = 29,796.43

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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.