Home / 51,011.78-76,497.16-19,410.99

Finding the Fourth Proportional to 51,011.78, 76,497.16 and 19,410.99

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Solution

The fourth proportional to 51,011.78, 76,497.16 and 19,410.99 is: 29,108.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,011.78 : 76,497.16 = 19,410.99 : x
  2. Step 2: Convert to fraction form
    51,011.78/76,497.16 = 19,410.99/x
  3. Step 3: Cross multiply
    51,011.78x = 76,497.16 × 19,410.99
  4. Step 4: Simplify right side
    51,011.78x = 1,484,885,739.09
  5. Step 5: Solve for x
    x = 1,484,885,739.09/51,011.78
  6. Step 6: Final answer
    x = 29,108.69

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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.