Home / 51,780.92-71,456.99-29,119.91

Finding the Fourth Proportional to 51,780.92, 71,456.99 and 29,119.91

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Solution

The fourth proportional to 51,780.92, 71,456.99 and 29,119.91 is: 40,185.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,780.92 : 71,456.99 = 29,119.91 : x
  2. Step 2: Convert to fraction form
    51,780.92/71,456.99 = 29,119.91/x
  3. Step 3: Cross multiply
    51,780.92x = 71,456.99 × 29,119.91
  4. Step 4: Simplify right side
    51,780.92x = 2,080,821,011.83
  5. Step 5: Solve for x
    x = 2,080,821,011.83/51,780.92
  6. Step 6: Final answer
    x = 40,185.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.