Home / 51,389.22-77,084.69-18,109.69

Finding the Fourth Proportional to 51,389.22, 77,084.69 and 18,109.69

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Solution

The fourth proportional to 51,389.22, 77,084.69 and 18,109.69 is: 27,164.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,389.22 : 77,084.69 = 18,109.69 : x
  2. Step 2: Convert to fraction form
    51,389.22/77,084.69 = 18,109.69/x
  3. Step 3: Cross multiply
    51,389.22x = 77,084.69 × 18,109.69
  4. Step 4: Simplify right side
    51,389.22x = 1,395,979,794.37
  5. Step 5: Solve for x
    x = 1,395,979,794.37/51,389.22
  6. Step 6: Final answer
    x = 27,164.84

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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.