Home / 57,164.14-78,882.69-31,668.79

Finding the Fourth Proportional to 57,164.14, 78,882.69 and 31,668.79

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Solution

The fourth proportional to 57,164.14, 78,882.69 and 31,668.79 is: 43,700.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,164.14 : 78,882.69 = 31,668.79 : x
  2. Step 2: Convert to fraction form
    57,164.14/78,882.69 = 31,668.79/x
  3. Step 3: Cross multiply
    57,164.14x = 78,882.69 × 31,668.79
  4. Step 4: Simplify right side
    57,164.14x = 2,498,119,344.25
  5. Step 5: Solve for x
    x = 2,498,119,344.25/57,164.14
  6. Step 6: Final answer
    x = 43,700.81

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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.