Home / 51,291.68-76,971.87-18,011.85

Finding the Fourth Proportional to 51,291.68, 76,971.87 and 18,011.85

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Solution

The fourth proportional to 51,291.68, 76,971.87 and 18,011.85 is: 27,029.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,291.68 : 76,971.87 = 18,011.85 : x
  2. Step 2: Convert to fraction form
    51,291.68/76,971.87 = 18,011.85/x
  3. Step 3: Cross multiply
    51,291.68x = 76,971.87 × 18,011.85
  4. Step 4: Simplify right side
    51,291.68x = 1,386,405,776.66
  5. Step 5: Solve for x
    x = 1,386,405,776.66/51,291.68
  6. Step 6: Final answer
    x = 27,029.84

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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.