Home / 51,078.12-76,639.21-19,497.66

Finding the Fourth Proportional to 51,078.12, 76,639.21 and 19,497.66

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Solution

The fourth proportional to 51,078.12, 76,639.21 and 19,497.66 is: 29,254.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,078.12 : 76,639.21 = 19,497.66 : x
  2. Step 2: Convert to fraction form
    51,078.12/76,639.21 = 19,497.66/x
  3. Step 3: Cross multiply
    51,078.12x = 76,639.21 × 19,497.66
  4. Step 4: Simplify right side
    51,078.12x = 1,494,285,463.88
  5. Step 5: Solve for x
    x = 1,494,285,463.88/51,078.12
  6. Step 6: Final answer
    x = 29,254.90

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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.